Invalid configuration information - please run set up


Oct 28, 2012
Hello, I've been getting this message everytime my computer boots - I go into set up via F2 and change date and time which then allows my computer to boot but the changes are not saved and the same happens next time I try to use the computer. How do I save the date and time settings?
You'll need to change the little watch battery (CMOS battery) on the motherboard. It's easy enough, look at it, make sure you remember which side is up, take it out, run to the nearest store that sells watch/hearing aid batteries and buy another. Replace that on your motherboard (proper side up) - restart, enter the time (one last time) - you should be fine.
One of the primary jobs of the CMOS battery is to hold system time while the computer is not powered.