When Win11 build 22581 was pushed to my machine I found that my Windows VMs would start but run very slowly. Found that Windows was reporting in msinfo32 and systeminfo that Hyper-V was now running even though all Hyper-V features were disabled.
Resolution:
- Disable Virtualisation Based Security (which includes Credential Guard)
- Download Device Guard and Credential Guard readiness tool from https://www.microsoft.com/en-us/downloa ... x?id=53337
- Run the included .ps1 with -Disable switch
- On reboot choose to disable VBS