Every week you should run the following at least once.

-Run a disk scan to check for hard drive issues

-Run a defragmentation program

-Run a clean up to delete unneeded files -Back up your files to a remote location

-Empty your recycle bin -Delete your Internet files

-Clear your browsing history -Delete your cookies

-Update your virus definitions

-Run a full virus scan Always check for updates at least once a month and delete/uninstall unused programs.