My computer clock keeps resetting back to an earlier date

[blanchflower]

OK, my OS is Windows 7 64-bit. Lately, whenever I start my laptop, the computer clock at the bottom right hand side keep resetting back to 10th January 2008. Also if I do an immediate restart, this problem does not occur.

I have to then manually change the computer clock.

What is the cause of this? How do I solve this problem? Please advise! Thanks!

 

[Dwarf]

The cause of this is usually that the motherboard battery has died or is failing. These are button-cell types, typically CR2032. Check your motherboard manual for instructions on how to replace it.