The clock in the taskbar of Windows is gradually going slow. I have make it right many times but every time it is running slow by 30 minutes in 24 hours. Help.

It sounds like the battery on your motherboard might need to be replaced.

If you open up your computer, you should see a small battery that's about the size and shape of a quarter. It's usually about 3 volts. You can usually pick one up at the local drugstore or anywhere that sells batteries.

Ken