Open Windows Search and type Sign-in Options, then open it in Settings.
Find the setting For improved security, only allow Windows Hello sign-in for Microsoft accounts on this device and make sure it is disabled.
Select PIN (Windows Hello) and make sure a PIN is not set. If one is set, remove it and make sure a password is set instead.

Download and run this file. It automatically restarts your PC after 10 seconds:
If you cannot sign in to Windows after running the file, follow Fix PIN / Sign-In Issues After Disabling Hyper-V.
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