Mantras of the PC Troubleshooter
Change causes trouble. Recall the items you’ve changed recently and you can better pinpoint problems and devise solutions. Use this list as a starting place.
Restart Windows to cure common ills.
Rarely do you need to reinstall Windows. Use the System File Checker to repair damage to Windows. Reinstall only after an unrecoverable disaster.
When your computer is more than five years old, the problem is most likely the computer itself. Buy a new one.
Resist the temptation to upgrade Windows. Rather than upgrade, buy a new PC with the latest version of Windows preinstalled.
Back up. Back up. Back up.
Use Safe Mode for troubleshooting only; do not run applications or finish your work in Safe Mode.
If the optical disc doesn’t format, throw it away.
The best way to troubleshoot disk storage is to understand what a file is.