CMOS Checksum error, how to reinstall Windows?

Question

BIOS

Writes CMOS Checksum error.
Is it possible to bring everything to the factory settings so that it does not give errors and how to do it?
Windows was installed, it is possible to connect a keyboard.

A photo

Answer 1

The BIOS battery is dead.
You can try to connect a USB keyboard, go into the BIOS and look for the items there "stop downloading if an error occurs such and such" and disable it (they were definitely in the old BIOS, now xs).
Well, open the instructions and read how to change the battery, this is the most effective IMHO.