entityMap|blocks|key|946b8|text|在我的Windows10主机上，这种情况时有发生。我尝试了很多方法来修复它，但最终起作用的是在PowerShell中以管理员身份运行此命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|9g1ms|bcdedit+/set+hypervisorlaunchtype+off|code-block|syntax|javascript|b92ue|并重新启动计算机。|cmoon^0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|K|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|L|9|@]|A|@]|B|$F|G]]|$2|H|4|I|6|7|8|M|9|@]|A|@]|B|$]]|$2|J|4|-4|6|7|8|N|9|@]|A|@]|B|$]]]]

This happens to me from time to time on my Windows 10 host. I tried a lot of things to fix it, but what worked in the end is running this command as an administer in PowerShell:
<pre><code>bcdedit /set hypervisorlaunchtype off
</code></pre>
and rebooting the computer.

entityMap|0|type|LINK|mutability|MUTABLE|data|url|https://www.reddit.com/r/Windows10/comments/g4hksf/virtualbox_problems/|blocks|key|5cohc|text|我也得到了这个错误。我通过卸载VirtualBox，删除所有剩余文件，然后重新安装VirtualBox来通过它。|unstyled|depth|inlineStyleRanges|entityRanges|bit4b|根据谷歌对这个错误的搜索结果，关于这个错误的帖子几天前才开始出现。我从https://www.reddit.com/r/Windows10/comments/g4hksf/virtualbox_problems/上的一条评论中发现了如何传递这个错误。|offset|length|du78c|顺便说一句，Windows唯一需要关闭的功能就是HyperV。|4t2lc^0|0|Z|1Z|0|0|0^^$0|$1|$2|3|4|5|6|$7|8]]]|9|@$A|B|C|D|2|E|F|P|G|@]|H|@]|6|$]]|$A|I|C|J|2|E|F|Q|G|@]|H|@$K|R|L|S|A|T]]|6|$]]|$A|M|C|N|2|E|F|U|G|@]|H|@]|6|$]]|$A|O|C|-4|2|E|F|V|G|@]|H|@]|6|$]]]]

I got this error too. I got passed it by uninstalling VirtualBox, removing any residual files, and then reinstalling VirtualBox.

Based on Google search results of this error, posts about it started appearing only a few days ago. I found out how to get passed this error from one of the comments on <a href="https://www.reddit.com/r/Windows10/comments/g4hksf/virtualbox_problems/" rel="nofollow noreferrer">https://www.reddit.com/r/Windows10/comments/g4hksf/virtualbox_problems/</a>.

By the way, the only Windows feature that needs to be turned off is HyperV.

entityMap|blocks|key|7pbug|text|我也有同样的问题。已尝试关闭HyperV并重新启动，但不起作用。我的BIOS也开启了虚拟功能。对我来说，修复它的方法是进入BIOS，关闭虚拟机，然后重新启动它。然后再次重新启动并返回到BIOS并重新打开虚拟。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|6sd0q^0|0^^$0|$]|1|@$2|3|4|5|6|7|8|D|9|@]|A|@]|B|$]]|$2|C|4|-4|6|7|8|E|9|@]|A|@]|B|$]]]]

I had the same problem. Tried the turning the HyperV off and rebooting but that did not work. My BIOS had Virtural turned on too. What fixed it for me was to go into BIOS, turn the virtual off then reboot it. Then reboot again and go back into the BIOS and turn virtual back on.

entityMap|blocks|key|4fvtr|text|我得到了相同的错误，简单地启用BIOS+VT-x是启用的，但只需再次启用BIOS+VT-x就可以消除该错误。卸载虚拟盒子，删除程序文件和ProgramData中的虚拟盒子文件|type|unstyled|depth|inlineStyleRanges|entityRanges|data|8boe5|在windows+10中|f57rq|设置->更新与安全->Recovery->高级启动->Restart+now|a2uq5|重启后，选择Troubleshoot+->Advanced+options->UEFI+Firmware+Settings+->click+Restart|b6guv|然后选择F10+->System+configurations->Virtualization+Technology选择enabled并按enter退出保存更改->选择是|96n5n|然后重新安装虚拟盒子，希望它能有所帮助|fqlnp^0|0|0|0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|N|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|O|9|@]|A|@]|B|$]]|$2|E|4|F|6|7|8|P|9|@]|A|@]|B|$]]|$2|G|4|H|6|7|8|Q|9|@]|A|@]|B|$]]|$2|I|4|J|6|7|8|R|9|@]|A|@]|B|$]]|$2|K|4|L|6|7|8|S|9|@]|A|@]|B|$]]|$2|M|4|-4|6|7|8|T|9|@]|A|@]|B|$]]]]

I got the same error, and simply enabling BIOS VT-x was enabled, but simply enabling again BIOS VT-x got rid of the error. Uninstall virtual box, delete Virtual box files in program files, and in ProgramData

In windows 10

Settings-> Update &amp; security->Recovery -> Advanced startup ->Restart now

Next after restarting choose
Troubleshoot ->Advanced options->UEFI Firmware Settings ->click Restart

Then select F10 ->System configurations->Virtualization Technology select enabled and pressed enter
Exit Saving changes->Select yes

Then reinstall virtual box, hope it helps

entityMap|0|type|LINK|mutability|MUTABLE|data|url|https://www.minitool.com/news/vt-x-is-not-available.html|blocks|key|9eaf6|text|我按照这些步骤here+(就像你做的那样)，什么都不起作用。|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|bbuj4|最后，我在我的基本输入输出系统中禁用了VT-d，突然我就可以运行VirtualBox机器了。我不知道它为什么有效，如果你无事可做，就试试吧。|style|CODE|eqk0h^0|7|4|0|0|J|4|0^^$0|$1|$2|3|4|5|6|$7|8]]]|9|@$A|B|C|D|2|E|F|P|G|@]|H|@$I|Q|J|R|A|S]]|6|$]]|$A|K|C|L|2|E|F|T|G|@$I|U|J|V|M|N]]|H|@]|6|$]]|$A|O|C|-4|2|E|F|W|G|@]|H|@]|6|$]]]]

I followed these steps <a href="https://www.minitool.com/news/vt-x-is-not-available.html" rel="nofollow noreferrer">here</a> (like you did) and nothing worked.
Eventually, I disabled <code>VT-d</code> in my BIOS, and suddenly I was able to run VirtualBox machines. I have no idea why it worked, just try it if you have nothing else to do.

entityMap|0|type|IMAGE|mutability|IMMUTABLE|data|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/946ed5393762be934184473c18a9dfa2.png|imageAlt|blocks|key|b7mb4|text|当windows10更新到windows2004时，我就遇到了这种情况。|unstyled|depth|inlineStyleRanges|entityRanges|1a5ot|因此，要解决此问题，请确保您禁用了windows功能的feature+HyperV|dkt7i|start+->+Windows+Feature+->+Windows+Hypervisor+Platform+->如果选中，请取消选中。|8sis6|重新启动您的电脑。|f87l9|然后尝试vagrant+up或再次启动virtualbox机器|offset|length|style|CODE|cs8ab|​|cgmdp|?|atomic|btsdp|d1kjp^0|0|0|0|0|4|A|0|0|0|1|0|0|0^^$0|$1|$2|3|4|5|6|$7|8|9|-4]]]|A|@$B|C|D|E|2|F|G|12|H|@]|I|@]|6|$]]|$B|J|D|K|2|F|G|13|H|@]|I|@]|6|$]]|$B|L|D|M|2|F|G|14|H|@]|I|@]|6|$]]|$B|N|D|O|2|F|G|15|H|@]|I|@]|6|$]]|$B|P|D|Q|2|F|G|16|H|@$R|17|S|18|T|U]]|I|@]|6|$]]|$B|V|D|W|2|F|G|19|H|@]|I|@]|6|$]]|$B|X|D|Y|2|Z|G|1A|H|@]|I|@$R|1B|S|1C|B|1D]]|6|$]]|$B|10|D|W|2|F|G|1E|H|@]|I|@]|6|$]]|$B|11|D|-4|2|F|G|1F|H|@]|I|@]|6|$]]]]

This happend with me when windows 10 updated to windows 2004

So to fix this Make sure you disable the feature HyperV of windows feature

start -> Windows Features -> Windows Hypervisor Platform -> uncheck if checked.

restart your PC.

then try <code>vagrant up</code> or start the virtualbox machine again

<a href="https://i.stack.imgur.com/1zNN2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1zNN2.png" alt="enter image description here"></a>

I'm running windows 10 enterprise trying to launch a VM in Virtualbox and it fails with the error. 
"VMMR0_DO_NEM_INIT_VM failed: VERR_NEM_MISSING_KERNEL_API_2 (VERR_NEM_MISSING_KERNEL_API_2).
VT-x is not available (VERR_VMX_NO_VMX)."

<a href="https://i.stack.imgur.com/JfqLs.png" rel="noreferrer"><img src="https://i.stack.imgur.com/JfqLs.png" alt="Vbox Error Outut"></a>

I have HyperV disabled in windows features and core isolation turned off
<a href="https://i.stack.imgur.com/TPLPA.png" rel="noreferrer"><img src="https://i.stack.imgur.com/TPLPA.png" alt="Windows settings"></a>

I've checked the registry as well and core isolation / memory itegrity is off there. I've also made sure that in group policy settings that virtualization based security is disabled.

My BIOS does have VT-X /VT-D enabled. 

I'm currently on Virtual box 6.1.6 but have tried previous versions back to 6.0.12 with no success.

Virtual Box VT-x is not available (VERR_VMX_NO_VMX).. Hyper V and core isolation is disabled

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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 我正在运行windows10企业版，试图在Virtualbox中启动一个虚拟机，但它失败了，并显示以下错误。"VMMR0_DO_NEM_INIT_VM失败: VERR_NEM_MISSING_KERNEL_API_2 (VERR_NEM_MISSING_KERNEL_API_2)。VT-x不可用(VERR_VMX_NO_VMX)。“ ​ ? ​ 我在windows功能中禁用了HyperV，并且关

问虚拟盒子VT-x不可用(VERR_VMX_NO_VMX)..已禁用Hyper V和核心隔离
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