1. Insert Windows XP CD into CD-ROM drive    
2. Click "Start", click "Run", type "cmd", click "Okay"     
3. Type "sfc/scannow"     
4. Press "Enter"     
5. After process completes, restart computer 
1. Insert Windows XP CD into CD-ROM drive    
2. Click "Start", click "Run", type "cmd", click "Okay"     
3. Type "sfc/scannow"     
4. Press "Enter"     
5. After process completes, restart computer 
