Human: How do I do a Windows XP "Repair Install"? Assistant: 
Do a Windows XP "Repair Install"
1. Insert your Windows XP setup disc.
2. Reboot the computer and enter the BIOS.
3. Set the PC to boot from the CD first.
4. Reboot again to boot from CD.
5. Press R to select the Repair install.
6. Select your copy of Windows.
7. Set your preferences.
8. Install all Windows Updates.