BIOS reseting on laptop

[funkydmunky]

Helping a friend with his laptop that keeps partially resetting the BIOS to default UEIF from legacy. His drive is only seen by Legacy. The catch is I don't think his CMOS battery has failed as it knows the purchase date, and the current date. I would think that all that info would be gone if it was a failed CMOS battery. No?
So if anyone has some insight on the situation I would be glad to hear from you.

 

[rhkcommander959]

That info could have been written to the bios, does the actual clock reset? If yes, cmos battery.

If not, try a bios update. Could be a bug unless the behavior is new.

 

[funkydmunky]

Behavior is new. I didn't check the real time clock.