Windows XP system year resets back 3 years

[Guest]

Upon startup in Windows XP, the system year resets back to 2002 but the
Monday, day and time remains accurate. How can this be corrected and why is
it happening?

 

[Bob I]

What is the date in the BIOS? F2 or Del key during POST prior to Windows
loading. Suspect CMOS battery may be running out of juice.

 

[Guest]

The CMOS date setting was year 2002. I changed it to 2005, rebooted and went
into the CMOS setting again and it was back to 2002. Does this mean I have
to replace the CMOS battery?

 

[Malke]

The CMOS date setting was year 2002. I changed it to 2005, rebooted
and went
into the CMOS setting again and it was back to 2002. Does this mean I
have to replace the CMOS battery?

Yes. Usually the battery is a small "coin" type battery, costing roughly
$3.00 USD. Very easy to replace. Of course you do this with the
computer off and unplugged!

Malke