VT-x is not available

Discussions related to using VirtualBox on Windows hosts.
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TomL12953
Posts: 38
Joined: 16. Mar 2012, 03:15
Primary OS: MS Windows 7
VBox Version: OSE other
Guest OSses: Commodore OS, Win 8

VT-x is not available

Post by TomL12953 »

I just updated Windows 10 to Build 18290. My virtual machines used to run fine. Now they all give me "VT-x is not available".
I checked my UEFI and it's still enabled there. Is there anything else I can check?
socratis
Site Moderator
Posts: 27329
Joined: 22. Oct 2010, 11:03
Primary OS: Mac OS X other
VBox Version: PUEL
Guest OSses: Win(*>98), Linux*, OSX>10.5
Location: Greece

Re: VT-x is not available

Post by socratis »

Please go thoroughly through the FAQ: I have a 64bit host, but can't install 64bit guests. Remember that these are just guidelines, you have to use your judgement...

Hyper-V may be activated, either directly or as part of a component. Read Microsoft's article on Credential Guard: Manage Windows Defender Credential Guard.
Do NOT send me Personal Messages (PMs) for troubleshooting, they are simply deleted.
Do NOT reply with the "QUOTE" button, please use the "POST REPLY", at the bottom of the form.
If you obfuscate any information requested, I will obfuscate my response. These are virtual UUIDs, not real ones.
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