Hyper v hypervisor error

Ошибка Hyper-V «Не удаётся запустить виртуальную машину, поскольку не выполняется низкоуровневая оболочка»

Hyper-V , родная для систем Windows – в её серверных выпусках, а также в некоторых десктопных версиях и редакциях – среда для работы с виртуальными машинами и их гостевыми ОС не всегда работает без проблем. Одной из таких проблем может быть выскакивающее при запуске виртуальной машины уведомление, что, мол, Hyper-V не удаётся её запустить, поскольку не выполняется некая низкоуровневая оболочка.

Что это за ошибка, и как её исправить.

Окно с такой ошибкой является универсальной трактовкой, причина может крыться в нескольких вещах.

Системные требования

Если сама Windows не соответствует требованиям для работы с Hyper-V, а десктопные выпуски не все позволяют работать с этим компонентом, он попросту не активируется в системе. Но есть ещё аппаратные требования. Их несоответствие может не влиять на активацию гипервизора, но в дальнейшем стать причиной появления такой ошибки.

Для работы Hyper-V необходимо:

• Не менее 4 Гб RAM;
• 64-битный процессор с поддержкой SLAT и технологии виртуализации.

Хранилище BCD

Рассматриваемая ошибка может говорить о неверной конфигурации данных хранилища BCD . Компонент Hyper-V глубоко интегрирован в Windows и стартует до запуска ядра системы. Если в хранилище BCD вносились изменения для модификации запуска гипервизора, они могут быть неверными. Либо же запуск Hyper-V и вовсе был ранее намеренно отключён с целью временной оптимизации использования ресурсов компьютера. В таком случае конфигурацию BCD в части запуска гипервизора необходимо либо подкорректировать, либо вернуть дефолтное значение путём установки автозапуска Hyper-V. Для установки автозапуска открываем CMD от имени администратора (обязательно) , вводим:

bcdedit /set hypervisorlaunchtype auto

После этого осуществляем перезагрузку.

AMD Bulldozer

Hyper-V не работает с процессорами компании AMD с архитектурой Bulldozer.

Технологии виртуализации

Для обеспечения жизнедеятельности среды виртуализации посредством любого гипервизора процессор должен быть обустроен технологией, обеспечивающей виртуализацию – Intel Virtualization, либо же AMD-V. О поддержке этих технологий можно узнать на страничке спецификаций процессора на сайтах, соответственно, Intel и AMD . И технология виртуализация, естественно, должна быть включена в BIOS .

Ещё один важный нюанс: для процессоров Intel в BIOS должны быть отключены специфические технологии Intel VT-d и Trusted Execution. С ними встроенный в Windows гипервизор не дружит. Вот примерно так должны выглядеть настройки BIOS для работы с Hyper-V: технология виртуализации включена, а специфические технологии – выключены.

Источник

Fix: Hypervisor is not Running Error on Windows 10

There have been users reports that state that users are not able to launch VirtualBox as they are presented with a message box saying hypervisor is not running. This error is often due to your Hyper-V services not running automatically or disabled Hyper-V feature. Basically, Hypervisor is a software that is used to run or create virtual machines. When users try to open VirtualBox, instead of the user interface, they are prompted with the ‘Virtual Machine could not be started because the hypervisor is not running’ error.

Virtual Machine Could Not be Started Because Hypervisor is not Running Windows 10

We all know about virtual machines and many of us have used it at least once throughout the years, albeit most of us aren’t aware of the responsible tech at play. Nonetheless, the error can be easily resolved by applying a few simple solutions that we have mentioned down below.

What causes the ‘Virtual Machine could not be started because the Hypervisor is not running’ Error on Windows 10?

Well, after looking at the user reports, the error is due to the following factors —

• Hyper-V services: In some cases, the error is popping up because the Hyper-V services on your Windows 10 aren’t starting automatically after abootupp.
• Hyper-V feature: Another thing that can cause the error to appear is the Hyper-V feature. If this feature, located in your Windows features list, is disabled, it will cause the error message to emerge.

To fix your issue, you can follow the few solutions down below. If you want a quick workaround, we recommend following the solutions in the same order as provided.

Solution 1: Using the Command Prompt

You can fix your issue by setting the hypervisor to start automatically in your boot configuration data file. This will require an elevated command prompt so make sure you are using an administrator account. Here’s how to do it:

1. Press Windows Key + X and select Command Prompt (Admin) from the list to open an elevated command prompt.
2. Once the command prompt loads, type in the following command and press enter:
3. bcdedit /set HypervisorLaunchType auto Setting Hypervisor to Start Automatically in BCD
4. Restart your system and check if it fixes your issue.

Solution 2: Starting the Hyper-V Service

Another fix that you can implement to circumvent the issue would be changing the properties of a Hyper-V service. Sometimes, the service doesn’t start automatically due to which the error is popping up. Therefore, to fix it, you will have to set the service to start automatically. Here’s how to do it:

1. Press Windows Key + R to open Run.
2. Type in ‘services.msc‘ and press Enter.
3. In the Windows Services list, locate the Hyper-V Virtual Machine Management service. Hyper-V Virtual Machine Management Service
4. Double-click it to open Properties.
5. Set the Startup type to Automatic and make sure the service is running.
6. Restart your system.

Solution 3: Enabling Hyper-V Feature

Finally, the last thing that can potentially fix your issue would be enabling the disabled Hyper-V feature. This feature is located in the Windows features list which can be found in the Control Panel. To do this, you will have to do the following:

1. Go to the Start Menu and open up the Control Panel.
2. Go to Programs and Features.
3. On the left-hand side, click ‘Turn Windows Features on or off’. Programs and Features – Control Panel
4. Scroll down and expand the Hyper-V entry.
5. Afterward, expand the Hyper-V Platform list.
6. Tick the ‘Hyper-V Hypervisor’ box and then click OK. Enabling Hyper-V Hypervisor Feature
7. If it is greyed out, you will have to tweak your BIOS settings a teensy bit. In your BIOS settings, make sure Virtualization setting is enabled.

Источник

Fix: Hypervisor is not running on Windows 10/11 [Full Guide]

• Some Windows 10 users reported that they get the error message Hypervisor is not running when trying to run multiple operating systems.
• First you need to make sure that virtualization is enabled in the BIOS.
• Use a reliable tool to update the drivers to the latest version.
• Also, check if your CPU supports virtualization in order to use native virtualization.

Many users use virtualization, but sometimes they might encounter Hypervisor is not running message on their PC.

This message will prevent you from using virtualization, but in today’s article, we’ll show you how to properly tackle this issue.

Virtualization is a useful feature, but sometimes problems with it can occur. Speaking of virtualization issues, here are some common problems that users reported:

• Hypervisor is not running Windows 10 Pro, BIOS – This problem can occur if virtualization isn’t enabled in BIOS, so be sure to find this feature and enable it.
• Hypervisor launch has been disabled through the hypervisorlaunchtype bcdedit setting – Sometimes Hyper-V feature can be disabled, but you should be able to start it simply by running a single command in Command Prompt.
• Hyper-V failed to start Hypervisor is not running – This problem can occur if your BIOS is out of date. To fix the issue, update your BIOS and check if that solves the problem.
• Virtual machine error Hypervisor is not running – Sometimes this problem can occur due to problematic updates, and in order to fix the issue, it’s advised to find and remove these updates manually.
• Hypervisor is not enabled, present, working – These are some common problems that can occur with Hyper-V, but you should be able to fix them using one of our solutions.

How do I fix the Hypervisor not running error on Windows 10?

1. Make sure that virtualization is enabled in BIOS

If you’re getting Hypervisor is not running message, perhaps the problem is related to your BIOS settings. As you know, in order to use virtualization, this feature needs to be actually enabled in BIOS.

To check if virtualization is enabled, just enter BIOS and look for this feature.

How to enable virtualization in BIOS:

1. Access your BIOS (If you need a hand, here’s how to enter BIOS on a Windows 7, 10 or 11 PC).
2. Then, click on Advanced Mode, and go to the Advanced tab.
3. Select CPU Configuration and set the Intel Virtualization Technology option (for Intel) or the SVM Mode (for AMD) to Enabled.
4. Make sure you save the changes before you exit this screen.

That is how to enable Hyper-V Hypervisor in Windows 10. However, note that enabling virtualization can be different according to your CPU, PC model, chipset, and of course, motherboard.

To see how to properly access BIOS and find this feature, we advise you to check your motherboard manual for more information.

Once you enable this feature, go back to Windows and check if the problem is still there.

2. Update your BIOS

The problem with virtualization can be your BIOS, so if you’re getting the Hypervisor is not running message on your PC, the problem might be an outdated BIOS.

Several users reported that they fixed this problem by updating their BIOS to the latest version.

This is an advanced process, and if you don’t perform it properly you can cause permanent damage to your PC, so we advise you to be extra cautious.

We already wrote a short guide on how to flash your BIOS, but if you know how to properly update BIOS on your motherboard, check your motherboard manual for detailed information.

3. Update the drivers to the latest version

If you’re unable to use virtualization due to Hypervisor is not running message, perhaps the problem is related to your drivers.

If you want to update all drivers on your PC fasts, perhaps using a third-party solution might be the best choice.

Using our recommendation, you can automatically update all your drivers with just a couple of clicks.

⇒ Get DriverFix

4. Reinstall the HyperV feature

1. In the Search bar type windows features, and choose Turn Windows features on or off from the list of results.
   
2. Locate the HyperV feature and uncheck it. Now click OK to save changes. If you’re asked to restart your PC, be sure to do so.
   
3. Once your PC restarts, go back to Windows Features window and enable the Hyper-V feature. You might be asked to restart your PC once again, so be sure to do that.

According to users, if you’re getting this error, perhaps there’s a glitch with HyperV feature.

Sometimes various Windows glitches can occur, but you can fix most problems with HyperV simply by reinstalling it.

Once your system restarts, the problem with Hyper-V should be resolved and everything will start working again.

In addition, the Task Manager can detect if it’s running on a physical or virtual machine. Under the Performance tab, the label Virtual machine: Yes is listed if a hypervisor has been detected.

5. Remove problematic updates

1. Press the Windows Key + I to open the Settings app.
2. Navigate to the Update & Security section, and select View update history.
   
3. You should now see a list of recent updates. Pay attention to the recent updates and memorize them or write them down. Now click Uninstall updates.
   
4. List of recent updates will appear in the new window. To remove an update, double-click it and follow the instructions on the screen.
   

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If the error started appearing recently, the problem might be a problematic Windows update.

As you know, Windows installs updates automatically, and if the problem started appearing recently, it’s possible that the update is causing it.

To fix the problem, it’s advised that you find the problematic update and remove it, by following our above steps.

Once the update is removed, check if the problem is resolved. You might have to repeat this step a couple of times before you find the update that is causing the problem.

Once you find the problematic update, be sure to write its name down.

Windows tends to install the missing updates automatically, so in order to prevent this problem from reappearing, we advise you to block this update from installing automatically.

Read more about this topic

6. Use the bcdedit command

1. Press the Windows Key + X, and select Command Prompt (Admin) or PowerShell (Admin) from the menu.
   
2. When Command Prompt opens, run the following command: bcdedit /store c:BootBCD /set hypervisorlaunchtype Auto

After the command is executed, check if the problem with virtualization is resolved. Alternatively, you can also use the bcdedit /set hypervisorlaunchtype auto command.

If you’re having problems with virtualization, perhaps you can fix the problem simply by running a single command in Command Prompt.

7. Use the DISM command

1. Start Command Prompt as an administrator.
2. When Command Prompt starts, run this command: dism /online /enable-feature /featurename:Microsoft-Hyper-V -All

Sometimes you might get this error because certain components aren’t working properly. To fix this problem, it’s advised that you run the DISM command in order to enable the HyperV feature.

Once the command is executed, Hyper-V feature should be enabled and the problem with virtualization should be resolved.

8. Check if your CPU supports virtualization

In order to use native virtualization in Windows 10, it’s necessary that your processor supports certain features. If it doesn’t have these features, you won’t be able to use the built-in virtualization.

To see if your processor supports virtualization, you’ll need to check its specifications on the manufacturer’s website.

Alternatively, you can use third-party tools in check if your processor supports virtualization.

Many users reported that virtualization won’t work on their PC since the processor doesn’t support SLAT feature.

If your processor doesn’t support the necessary features, you might have to change it in order to use built-in virtualization.

9. Use third-party applications

If you didn’t manage to fix Hypervisor is not running error, perhaps you might want to try using a third-party solution as a workaround.

Even if your processor doesn’t support the virtualization features, you should be able to create a virtual machine in Windows using our recommendation software.

This tool specializes in virtualization, and it offers all the necessary features for both advanced and first-time users alike, so we strongly suggest that you try it out.

The hypervisor is not running error can cause problems, but we hope that you managed to fix it using one of our solutions. For more suggestions, please access the comments section below.

Источник

Many users use virtualization, but sometimes they might encounter Hypervisor is not running message on their PC.

This message will prevent you from using virtualization, but in today’s article, we’ll show you how to properly tackle this issue.

Virtualization is a useful feature, but sometimes problems with it can occur. Speaking of virtualization issues, here are some common problems that users reported:

• Hypervisor is not running Windows 10 Pro, BIOS – This problem can occur if virtualization isn’t enabled in BIOS, so be sure to find this feature and enable it.
• Hypervisor launch has been disabled through the hypervisorlaunchtype bcdedit setting – Sometimes Hyper-V feature can be disabled, but you should be able to start it simply by running a single command in Command Prompt.
• Hyper-V failed to start Hypervisor is not running – This problem can occur if your BIOS is out of date. To fix the issue, update your BIOS and check if that solves the problem.
• Virtual machine error Hypervisor is not running – Sometimes this problem can occur due to problematic updates, and in order to fix the issue, it’s advised to find and remove these updates manually.
• Hypervisor is not enabled, present, working – These are some common problems that can occur with Hyper-V, but you should be able to fix them using one of our solutions.

How do I fix the Hypervisor not running error on Windows 10?

1. Make sure that virtualization is enabled in BIOS
2. Update your BIOS
3. Update the drivers to the latest version
4. Reinstall HyperV feature
5. Remove problematic updates
6. Use bcdedit command
7. Use DISM command
8. Check if your CPU supports virtualization
9. Use third-party applications

1. Make sure that virtualization is enabled in BIOS

If you’re getting Hypervisor is not running message, perhaps the problem is related to your BIOS settings. As you know, in order to use virtualization, this feature needs to be actually enabled in BIOS.

To check if virtualization is enabled, just enter BIOS and look for this feature.

How to enable virtualization in BIOS:

1. Access your BIOS (If you need a hand, here’s how to enter BIOS on a Windows 7, 10 or 11 PC).
2. Then, click on Advanced Mode, and go to the Advanced tab.
3. Select CPU Configuration and set the Intel Virtualization Technology option (for Intel) or the SVM Mode (for AMD) to Enabled.
4. Make sure you save the changes before you exit this screen.

That is how to enable Hyper-V Hypervisor in Windows 10. However, note that enabling virtualization can be different according to your CPU, PC model, chipset, and of course, motherboard.

To see how to properly access BIOS and find this feature, we advise you to check your motherboard manual for more information.

Once you enable this feature, go back to Windows and check if the problem is still there.

2. Update your BIOS

The problem with virtualization can be your BIOS, so if you’re getting the Hypervisor is not running message on your PC, the problem might be an outdated BIOS.

Several users reported that they fixed this problem by updating their BIOS to the latest version.

This is an advanced process, and if you don’t perform it properly you can cause permanent damage to your PC, so we advise you to be extra cautious.

We already wrote a short guide on how to flash your BIOS, but if you know how to properly update BIOS on your motherboard, check your motherboard manual for detailed information.

3. Update the drivers to the latest version

If you’re unable to use virtualization due to Hypervisor is not running message, perhaps the problem is related to your drivers.

If you want to update all drivers on your PC fasts, perhaps using a third-party solution might be the best choice.

Using our recommendation, you can automatically update all your drivers with just a couple of clicks.

⇒ Get DriverFix

4. Reinstall the HyperV feature

1. In the Search bar type windows features, and choose Turn Windows features on or off from the list of results.
   
2. Locate the HyperV feature and uncheck it. Now click OK to save changes. If you’re asked to restart your PC, be sure to do so.
   
3. Once your PC restarts, go back to Windows Features window and enable the Hyper-V feature. You might be asked to restart your PC once again, so be sure to do that.

According to users, if you’re getting this error, perhaps there’s a glitch with HyperV feature.

Sometimes various Windows glitches can occur, but you can fix most problems with HyperV simply by reinstalling it.

Once your system restarts, the problem with Hyper-V should be resolved and everything will start working again.

In addition, the Task Manager can detect if it’s running on a physical or virtual machine. Under the Performance tab, the label Virtual machine: Yes is listed if a hypervisor has been detected.

5. Remove problematic updates

1. Press the Windows Key + I to open the Settings app.
2. Navigate to the Update & Security section, and select View update history.
   
3. You should now see a list of recent updates. Pay attention to the recent updates and memorize them or write them down. Now click Uninstall updates.
   
4. List of recent updates will appear in the new window. To remove an update, double-click it and follow the instructions on the screen.
   

If the error started appearing recently, the problem might be a problematic Windows update.

As you know, Windows installs updates automatically, and if the problem started appearing recently, it’s possible that the update is causing it.

To fix the problem, it’s advised that you find the problematic update and remove it, by following our above steps.

Once the update is removed, check if the problem is resolved. You might have to repeat this step a couple of times before you find the update that is causing the problem.

Once you find the problematic update, be sure to write its name down.

Windows tends to install the missing updates automatically, so in order to prevent this problem from reappearing, we advise you to block this update from installing automatically.

6. Use the bcdedit command

1. Press the Windows Key + X, and select Command Prompt (Admin) or PowerShell (Admin) from the menu.
   
2. When Command Prompt opens, run the following command: bcdedit /store c:BootBCD /set hypervisorlaunchtype Auto

After the command is executed, check if the problem with virtualization is resolved. Alternatively, you can also use the bcdedit /set hypervisorlaunchtype auto command.

If you’re having problems with virtualization, perhaps you can fix the problem simply by running a single command in Command Prompt.

7. Use the DISM command

1. Start Command Prompt as an administrator.
2. When Command Prompt starts, run this command: dism /online /enable-feature /featurename:Microsoft-Hyper-V -All

Sometimes you might get this error because certain components aren’t working properly. To fix this problem, it’s advised that you run the DISM command in order to enable the HyperV feature.

Once the command is executed, Hyper-V feature should be enabled and the problem with virtualization should be resolved.

8. Check if your CPU supports virtualization

In order to use native virtualization in Windows 10, it’s necessary that your processor supports certain features. If it doesn’t have these features, you won’t be able to use the built-in virtualization.

To see if your processor supports virtualization, you’ll need to check its specifications on the manufacturer’s website.

Alternatively, you can use third-party tools in check if your processor supports virtualization.

Many users reported that virtualization won’t work on their PC since the processor doesn’t support SLAT feature.

If your processor doesn’t support the necessary features, you might have to change it in order to use built-in virtualization.

9. Use third-party applications

If you didn’t manage to fix Hypervisor is not running error, perhaps you might want to try using a third-party solution as a workaround.

Even if your processor doesn’t support the virtualization features, you should be able to create a virtual machine in Windows using our recommendation software.

This tool specializes in virtualization, and it offers all the necessary features for both advanced and first-time users alike, so we strongly suggest that you try it out.

⇒ Get WMware Workstation 16

The hypervisor is not running error can cause problems, but we hope that you managed to fix it using one of our solutions. For more suggestions, please access the comments section below.

The virtual machine is choice of many windows users. However, virtualization is not too far in disappointing users with unknown errors. The virtual machine could not be started because the hypervisor is not running is one of them.

The hypervisor is Microsoft’s program to run virtual machines. As virtualization allows users to have multiple operating systems at once, isolated from each other. This flexible approach to enjoy the personalization has encouraged Hypervisor features as it is required to run this.

The issue often appears, when the systems CPU is incapable of handling virtual machine feature because of the absence of SLAT. There are other instances as well like DEP, which needs to be enabled if it is not, to fix Hypervisor is not running issue. Also, if you have not enabled certain parameters in the BIOS, you will get this error message.

We have included various solutions to fix Hypervisor is not running issue. Just go ahead with us!

Hypervisor is Not Running: Problem Overview

According to the user’s report, when they are trying to launch a virtual machine, a window pops up with an error message. This prevents users from experiencing virtual machine features.

There are plenty of reasons behind this issue as shown below causing issues with Microsoft Hypervisor.

Hypervisor is Not Running: Related Problems

No error is without related issues encountered by Windows users. Various range of related problems is displayed below for your reference. Like, Hypervisor is not running Windows 10, Hypervisor is not running server 2016, among others. Go for this article to fix the undermentioned issues as well.

To fix Hypervisor is not running while launching a Virtual machine. We have included this basic approach section for those whose cause is not a severe one. Let’s start by enabling some features to get back to the virtualization.

Alternation in BIOS settings is required to stop Hypervisor is not running issue. As if the feature is not allowed in your systems BIOS, you can’t launch the Virtual machine via Hypervisor.

Just check on your motherboards manual to get into the BIOS of your windows system. Afterward, change the required configuration. Just enable Virtualization in the configuration. Once it is done check if the issue is fixed or not.

Be careful while doing this as any incorrect operation can lead to damaging your system.

The SLAT capable CPU supports virtualization in the windows system. It is mandatory to know if your CPU is actually allowed for it or not. Many users have reported that they tried fixes and at last, they found that the CPU was not SLAT capable.

To check this just visit your CPU manufacturer’s website to know the specification details. If it is incapable then you can’t launch a virtual platform. To do so you might need to get an upgraded system.

Steps To Fix Hypervisor is Not Running Error

By now you have checked on the essential and minor things. If the above two criteria were okay, that means the issue is with internal features. Various methods like enabling Hyper-V services and features among others are enough to fix Hypervisor is not running Windows 10. Do follow the order of solutions provided below.

Go with command prompt

If you have not set the hypervisor to open automatically after boot. Then you may lead to a virtual machine could not be started because the hypervisor is not running is one of them. To stop this, you need to re-configure this setting in the boot data file. Many users have fixed this issue by this.

Go with the under given steps to perform this:

Once the system turns on, check if the issue “Hypervisor is not running” is fixed or not. If not then go for starting the Hyper-V services in next method.

Start the Hyper-V service

If Hyper-V services are not starting after boot this issue is obvious. Many users have reported that this service is unable to get launched automatically. As per users, this was the real culprit behind Hypervisor is not running issue.

Go with the under given steps to change the Hyper-V services setting:

Now, you are all done with this feature. Once the system turns on, check if the issue “Hypervisor is not running” got fixed or not. If not then go for enabling the Hyper-V feature in the next method.

Enable the Hyper-V feature

Hyper-V-feature is essential to run the virtual machine comfortably. Many users have found that this feature was not enabled in your windows system. If this your case too just enables the Hyper-V feature as soon as possible. Many users are able to launch their Virtual Machine after performing this method.

Go with the under given steps to change the Hyper-V Feature setting:

Once it turns on, check if the issue “Hypervisor is not running” got fixed or not. If not then go for enabling the data execution under Performance tab in the next method.

Note: In case you find the toggle is greyed in step 5. There are chances that the “Virtualization” is not enabled in your systems BIOS. This is a bit risky but it needs to do if you want to launch Virtual Machine.

Enable Data Execution Prevention

Windows operating system includes a Data Execution Prevention (DEP). This is a memory protection tool that works at the system level. This is a minor thing but there are chances that it is turned off in. If so, you will get such error codes while using Hypervisor. Various users have found this basic thing a great fix.

Go with the under given steps to change the DEP setting:

Once the system turns on, check if you are able to launch the virtual machine or not. If you are yet not over with Hypervisor is not running issue. Go with the next method and remove the recently installed updates.

Note: If this option is greyed out in your system, that means it is not enabled in BIOS. We advise you to get into bios and enable it according to your systems motherboard’s instruction manual.

Uninstall the recent updates

Some users started getting Hypervisor is not running issue after updating their system. This shows that some update has glitched or created an incompatible environment preventing Virtualization. As windows are liable to perform an automatic update. But no need to worry as it is possible to remove the recent updates.

Go with the following set of steps to remove the problematic update:

Note: You can also block that particular update from automatic download and installation in your system.

Once it turns on, check if the Hypervisor is not running issue got fixed or not. If not then you should go for official support. As all these solutions were enough to fix this.

Tips To Avoid Hypervisor is Not Running Error

Contact Official Support

Yet not done with the virtual machine could not be started because the hypervisor is not running? Visit online website for help as per the manufacturer of your system like HP, Dell, Acer among others.

Also, we recommend you to get access to the nearest service center to get technical help. You can also get online help before visiting. Make sure you have the required documents if you possess warranty benefits.

Final Words: Conclusion

We hope you are done with the “Hypervisor is not working” issue in the windows system. Do you have any suggestions? If yes, feel free to write us to help your fellow readers.

However, you get any issue while applying steps available in any of the above methods. Do mention us in the comment section below including the feedback, once you are over this.

Keep coming for further troubleshooting!

Virtual machines allow people to run multiple systems on one computer. Windows Hyper-V allow users to directly deploy virtual machines on Windows computer. It is convenient, but we have noticed that some users have trouble when using this feature.

“I have enabled Hyper-V to create virtual machine on my computer, Windows 10, which is hosting 4 VMs. Today, I am trying to boot my VMs as usual, but it doesn’t work and I see the error message.

An error occurred while attempting to start the selected virtual machine.

Virtual machine could not be started because the hypervisor is not running.

I haven’t done any changes in Settings. How could I fix this?”

You might have useful data in virtual machine, follow this passage to know what does this error message means and how to solve the problem.

Section 1. Why is hypervisor not running?

Generally speaking, this problem hypervisor not working could be caused by wrong BIOS settings, modified Windows settings, or latest update.

Your BIOS settings might be changed so that virtualization, Hyper-V feature, or DEP has been disabled, you could follow the steps in the next section to correct it.

An outdated bios might also course might course this problem. Don’t know how to update bios? Go to the next section.

In addition, your computer system might have been recently updated, you could navigate to Windows update to check or uninstall the update.

Section 2. How to fix hypervisor is not running issue?

In section 1, you have known the possible causes which could lead to hypervisor not running and virtual machine not starting. In this section, you will know the detailed steps to fix this issue.

Before you try any solutions below, it is suggested to do a restart because you might find your VM works again with the simplest solution.

Solution 1. Enable the EDP Settings in BIOS

The function of DEP (Data Execution Prevention) is to prevent your computer being harmed by malware. To allow hypervisor, Microsoft suggests you enable it.

1. To enter BIOS, you need to know your BIOS key first, it could be F10, F2, F12, F1, or DEL.

2. Reboot your computer and repeatedly press BIOS key to enter BIOS.

3. Navigate to DEP features and enable it. The option depends on your computer. It could be «Data Execution Prevention,» «XD,» «Execute Disable,» or «NX.»

4. Exist the menu and click save changes

You could also enable DEP settings without entering BIOS.

1. Open the Control Panel

2. Click System and Security and then select System

3. Navigate to Advanced System Settings

4. On the Advanced tab, click Settings in Performance section

5. Click the Data Execution Prevention tab

6. Select Turn on DEP for essential Windows programs and services only and then click OK. If are using other products, check

Solution 2. Enable Visualization in BIOS

Visualization feature is necessary for the use of hypervisor so you should make sure it is enabled in BIOS.

1. Reboot your computer and enter BIOS as in solution 1

2. Navigate to CPU Configuration

3. Enter Acceleration Section

4. Find the options VT-x, AMD-V, SVM, or Vanderpool and enable them. If you see Intel VT-d or AMD IOMMU, also enable them.

5. Exist menu and click save changes.

Solution 3. Update BIOS

An out-dated BIOS might cause hypervisor not running problem. An update might fix it. You need to know the motherboard manufacturer, go to its official website to know the information about the motherboard. Some manufacturers offers BIOS-flashing options directly in BIOS, it would be much simpler to update BIOS than usual way.

1. Go to the website of motherboard to download the BIOS update.

2. Unzip and transfer it to a portable storage

3. Reboot your computer and enter UEFI control panel in BOIS

4. Launch the UEFI’s firmware update tool or flashing tool and back up your PC’s existing firmware to your flash drive

5. Use the same UEFI utility to select the new firmware image you saved on the flash drive. After this, reboot computer.

Solution 4. Rollback Windows Update

You might not change Windows settings manually, but the latest Windows update might do something to your computer. Uninstall it might fix hypervisor not running issue.

1. Click Windows icon on desktop and then click the Settings icon

2. Select Update and Security

3. Click View installed update history

4. Click Uninstall updates

5. View recent updates and remove the wrong ones.

Section 3. Backup your virtual machine in an effective way

Your data is very important, and the risk of losing it is very high, if, a virtual machine fails to start properly due to some undiagnosable reasons. Therefore, in order to minimize the loss under the worst scenario, the best way is to make a proper backup and disaster recovery plan for your Hyper-V environment in advance.

With Vinchin Backup & Recovery, the whole process can be greatly simplified. You would enjoy the features including Automatic VM Backup, Agentless Backup, Granular Restore, powerful RCT alternative, BitDetector, file-level recovery, etc., all in one web-based console.

Simply download Vinchin Backup & Recovery to start an easy data protection journey.

Conclusion

Hyper-V users might encounter with the problem that virtual machine could not be started because the hypervisor is not running. If you got this error message, BIOS settings, Windows settings, or Windows update might be the causes. No matter you use Windows 10, Windows 2012 server or other operating system, just use the 4 solutions in this passage to fix the issue.

By the way, you can use Vinchin Backup & Recovery to easily backup Hyper-V VM. Don’t forget to share this passage to help more people.