EDIT: after 3 years using workarounds, I finally found the root cause of this issue. Explanation in this thread: https://forum.redfox.bz/threads/reclock-on-a-pre-nehalem-with-windows-8-10-disable-c1e-c3-power-save-in-bios.75761/
Hello.
I recently upgraded my HTPC to Windows 10 (64) from...