I lost my oem windows 11 license upgraded from a windows 10 version after updating to this last bios version. I didn't have any problem before when updating from bios 3.something to 4.something. So if you use a oem version of windows, be carefull.Abo...

You can use bios flashback to re-flash your bios with another version and see if things works. And you don't need CPU or memory installed to do this.

When I tried to install it, I just left it installing for about 10 minutes. After some time stopped, the installation continued until finish.