HELP! Computer problem. Computer is slow, laggy, and wont shutdown.?

I am having problems typing and loading things on my laptop. I did scans with ad-aware and virus protection but found only that my SHELL32.dll and KIRNEL32.dll file needs to be "changed." I read up on it but Im still lost! What can I do to fix these issues and make my computer run a lot better than this!?!?

Also I have to undo the battery to make the computer shutdown it wont respond any other way.

HELP! Computer problem. Computer is slow, laggy, and wont shutdown.?antivirus download

try to replace the changed DLLs with the OS original DLLs Start--%26gt;Run sfc /scannow with your install CD in the drive. also running a defrag might help some with the shut down issue.

HELP! Computer problem. Computer is slow, laggy, and wont shutdown.?bmw

Your operating system may be corrupted. You might want to take it to a technician for a diagnosis.
you can find those files on your original Windows CD. They might be compressed inside a file that ends in .CAB

You can often shut down a laptop by holding the power button down for ten to 30 seconds, or longer if necessary.