Did you use the value "00000000" ?
You need to test with the correct value.
I was also modifying the mcupdate_GenuineIntel.dll file so that Windows would only "take into account" the BIOS microcode.
Otherwise, Windows uses the more recent version of the microcode between that file and the BIOS...
Since a Windows update (summer 2025), it's these values now
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management]
"FeatureSettingsOverride"=dword:2000003
"FeatureSettingsOverrideMask"=dword:00000003
The 00000003 value "disables" CPU threads in Windows, since...
Check if your license has expired (if so, you'll need to renew it for premium feature)
Only features that were present before the license expired will be usable.
Are you using the new (default) 25h2 installation setup ?
And did you delete any files/directories from the root of the ISO ?
Some are required with the new setup for storage drive (but not with the old one) among other things, and there were also problems with unattended and this new setup...
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