Questions and Answers :
Windows :
New install, no units
Message board moderation
Previous · 1 · 2
| Author | Message |
|---|---|
|
Send message Joined: 17 Aug 17 Posts: 129 Credit: 12,314,672 RAC: 5,889   
|
Is this still a Windows 11 24H2 issue? the computers page is still showing this machine as not having virtualisation enabled |
 Send message Joined: 15 Jun 08 Posts: 2724 Credit: 298,950,841 RAC: 131,104 |
It's still your local Windows setup. You need to completely disable all Hyper-V components and ensure Windows doesn't automatically enable it again in the background. There are lots of comments about this here and in the VirtualBox forum. |
|
Send message Joined: 17 Aug 17 Posts: 129 Credit: 12,314,672 RAC: 5,889
|
I have followed the suggestions I found here but I still seem to be missing something, all the Virtualisation features look to be off in Windows features and I have core isolation off, what am I missing?   |
|
Send message Joined: 13 Jan 24 Posts: 44 Credit: 7,890,836 RAC: 15,740  
|
Have you restarted the computer specifically using Restart in the Start menu? There is evidence that Fast Boot (normally the default) retains some state relating to Hyper-V. Using Restart rather than Shudown & reboot forces a full reinitialization, clearing all prior state information. Note that using the power button to turn the computer off does not force a full reinitialization but rather allows Fast Boot when the system is next turned on. |
|
Send message Joined: 17 Aug 17 Posts: 129 Credit: 12,314,672 RAC: 5,889
|
Many times, been trying since Feb |
|
Send message Joined: 13 Jan 24 Posts: 44 Credit: 7,890,836 RAC: 15,740
|
OK, it isn't just retained state. A while back (July 15) you said that Virtualisation based security is runningIf that is still true, it is enough to cause the problem. System Information (msinfo32) must show Virtualization-based security Not enabledin order for LHC@home to work. It's a bit tricky, since some of the recommendations that I see online for disabling VBS involve turning off hardware support for virtualization in BIOS which will also prevent LHC@home from running. |
|
Send message Joined: 17 Aug 17 Posts: 129 Credit: 12,314,672 RAC: 5,889
|
Sorry yea forgot about that, it is still showing as running, how do I disable it? I was under the impression that turning off memory integrity disabled VBS? |
|
Send message Joined: 13 Jan 24 Posts: 44 Credit: 7,890,836 RAC: 15,740
|
Try a search for "disable virtualization based security windows 11 pro 24h2" and look at the answers that come from learn.microsoft.com. It looks like a registry edit may be required. Also, you may be running into a UEFI lock introduced by Microsoft in 24H2. See the "Disable Credential Guard with UEFI lock" section in one of the learn.microsoft.com articles. I tried to post links but for some reason the post never appeared. |
 Magic Quantum Mechanic Send message Joined: 24 Oct 04 Posts: 1257 Credit: 91,443,603 RAC: 116,237 
|
|
©2026 CERN