How to Fix Windows XP With Missing or Corrupt System Files

1

Start your computer up and log into your Windows XP operating system with an administrator-level user account.

2

Insert your Windows XP CD into your CD drive and close any popup windows that may appear.

3

Click on the "Start" button, open the "Run" utility, type "cmd" and then press the "Enter" key.

4

Type "sfc /scannow" into the command prompt and wait while the scanning utility checks your system files for damage or deletion. If any bad files are found, they are automatically replaced.