I try to avoid household IT work these days but Bengt's computer had trouble with the latest Microsoft patch Tuesday. The symptom was that it would start to the the "Automatic Recovery" screen then die (usually beeping incessantly). The weird thing was that I couldn't get to the BIOS to try to boot to a USB. I was just about to give up and take it to the local PC repair shop when I read the motherboard manual which reminded of the good ol' CMOS. The manual displayed the pins required to reset the CMOS and after searching the garage for an jumper, the computer booted up! Windows was able to finish the update and everything was peachy.