How to backup bios windows xp

[parsa452m]

Hi
I have 5 motherboards that for install windows I must change BIOS settings. so tell me how to back up the BIOS and do change it in another .

 

[Motopsychojdn]

It would help if you posted the motherboard model, but you don't need to back anything up, just make the changes you want/need to, then install windows,
if at any point there are issues, just reset the bios by removing the CMos battery for a bit, this resets it to default settings
Moto