On a Windows computer there is always something to do especially if you are running Windows XP
- Disc Cleanup
- Checking Windows Update - don't forget the optional updates
- Virus Scans
- Defrag (if on Windows XP)
- Stopping programs from loading - MSCONFIG - just Google it
So what do you have to do on an Apple computer?
Updates to the operting system Lion , Mountain Lion etc available should be visible when they appear as per below.
Occasionally if you are having issues repair disc permissions through disc utility in the utilities menu.