Question: Had a power outage Sunday with several power bumps. Now my clock reads the wrong time and my mouse cursor does not move. The computer also boots very slowly.
A. There could have been many things that could have happened with a power surge. You could have corrupted some Windows files causing the slowness in booting and the clock problem as well as the mouse not moving. Then again these problems can also be caused by hardware damage especially to the motherboard since it keeps track of the time and the mouse connects to it.
I would try a different mouse or even a different type. If you have a PS2 mouse with the round connector then you may want to try a USB mouse and vice versa. You can go into your BIOS and check the date/time and change it there and see if it sticks in Windows.
Another more drastic option is to do a repair installation of Windows which will reinstall Windows while leaving your programs and files intact. That way it will replace any possible corrupt system files. Be sure to do a backup first just in case.