If you computer is not running the way it once ran. Here are a few things you can do to help speed it up.

Run Windows Defrag

Run Windows Disk Cleanup

Run Windows Disk Checker

Update and Run your Anit-Virus program

Download a good spyware checker like Spybot S&D or Adware, update and run

If you follow these steps on a monthly basis, Along with backing up your data, you will keep your computer in tip-top condition.

To remove av scan simply go to add remove programs and uninstall. Reboot computer. Update antivirus definitions and do full scan,