Continually heating and cooling down the circuits can lead to problems. Always use a surge suppressor. The surge suppressor helps protect the system from death by electrocution. Everything that attaches to your computer must be surge protected because a surge can pass through an unprotected device and travel right into your computer through the cable that connects the two. Check your disks for errors weekly.
Errors occasionally happen in the file and directory systems.
If they are not found and corrected, they can grow and can potentially disable a system. By checking for these errors periodically and keeping records of when they are found, they can be repaired and trends can be identified. Scandisk is a program provided by Windows 95. Scandisk will check your disk drives for errors. If errors are found, it will allow you to repair them, at the same time.