I'm trying to defrag my c drive and the process goes to 48% and says "system changed" and starts over at 0%. I remember reading that I should uninstal "something" to get the computer to finish, but I can't recall what it was. Any help would be appreciated.

For defrag to run all running programs except Explorer need to be shut down. You can do this by pressing Ctrl+Alt+Del and using End Task. Also make sure that anti-virus and screensaver is also disabled.

It might be safer to do a defrag from Safe Mode. Press f8 as you boot the machine until you see the menu that offers Safe Mode.

Hope this helps,
Scott<>

I closed all of the programs and took off the screen saver, but didn't disable the anti virus. I'll give this a try. Thanks.