Model Extensa 4420-5239. How to replace cmos battery? Do I need a Bios password after?
Model Extensa 4420-5239. After 4 years of use when I reboot my laptop the year reverts back to 2006. I assume I need to replace the CMOS battery which is under the palm rest as far as I can tell but I cannot get to it. Also if I do change it will I be locked out and need a BIOS password?