LHC@home

<p_vm_extensions_disabled>0</p_vm_extensions_disabled> is what I see under client_state.xml

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there is teh BOINC event

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https://ibb.co/dKVN6rh

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should </p_vm_extensions_disabled> be Enabled?

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[img https://ibb.co/dKVN6rh][/img]

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Great BOINC thinks that its OK, my thought is it still might be off, looking at the BIOS manual for the Z790 there is a setting called "Intel(VMX) Virtualization Technology" in the advanced, CPU Configuration, Check this is enable, VT-d is the directed access to hardware for the VMX.

 [img]https://ibb.co/dKVN6rh[/img]

Would be correct.

What before this screenshot, you have to close BOINC and reopen it as it only does the check 1 time at startup looks like this computer has been on for a while?

What about the task manager windows?

should be:

 <p_vm_extensions_disabled>0</p_vm_extensions_disabled>

This is BOINC did not disable Virtualisation

Yes, I ensured Intel(VMX) Virtualization Technology is enabled in the BIOS and the VT-D and IOMMU grouping.

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I am starting to think that the issue may be Windows 11 24H2, but I did have that running on an AMD system before I upgraded to the Intel z790 Asus Proart Creators. so maybe not or maybe it has to do with Intel and Win 11 24H2 or some weird security setting. Memory encryption in the BIOS is disabled, and Mem core isolation is disabled in Windows. there are no antiviruses on the system but Windows Defender.

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should I change /p_vm_extensions_disabled to /p_vm_extensions_Enabled>?

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0 is good, so no need to change it, sometime it got messed up for people.

I am not sure what else to do here.

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Do you think I'll have to wait for a new BOINC update to be compatible with 24H2?

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I did a clean install with 24H2 on my new 9950X, I had memory intergrity on, let me just reboot. it was bad like yours:

It's got to be something with Windows and mem core isolation; It's disabled, and I've rebooted.

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I think its a bug in windows, I checked the registery and it was still enabled even though the switch for memory intergrity was off.

I edtied the registry now its good.


Set-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Control\DeviceGuard\ -Name EnableVirtualizationBasedSecurity -Value 0

I've opened up powershell ran as admin ran this Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\DeviceGuard\" -Name EnableVirtualizationBasedSecurity -Value 0


going to reboot. stand by...

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I confirmed it's a Windows bug.

Thank you. I think you need to get credit for this discovery.

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I think the issue is actually with VirtualBox, which is why they move BOINC to use docker.