1. Defragment all hard drives at least once a month.
2. Clean out Internet cache at least once a month.
3. Clean out temporary files at least once a month.
4. Update your software regularly to keep it up to date and safe from virus or software problems.
5. Keep you virus protection up to date.
6. Fix any errors on your hard drives.
7. Uninstall unnecessary programs.
8. Check for spyware or adware on your hard drives and remove any that are found.
9. Use an Uninterruptible Power Supply or battery backup with surge protection to protect your equipment from power surges and save your files in case there is a blackout.
10. Upgrade your computer as necessary to keep it working its best.