How to Repair Windows XP With a USB

Repairing Windows XP from a USB drive is necessary when your computer's CD drive is not functioning, preventing you from using your Windows XP CD as intended. Accomplish this by booting into DOS and loading the setup files from the USB drive, a process which generally takes less than 10 minutes to successfully commence and 30 to 45 minutes to complete.

Step

Insert the boot disk and the XP USB drive into the computer.

Step

Restart the computer. Press any key when prompted to boot into DOS.

Step

Type "x:cd i386" and press "Enter," replacing "x" with the letter of your USB drive.

Step

Type "winnt" and press "Enter" to launch the XP setup from the files on the USB drive.

Step

Type "x:\i386" and press "Enter," replacing "x" with the letter of your USB drive.

Step

Press "Enter" at the Windows welcome screen and "F8" at the license agreement. Highlight the drive containing Windows XP and press "R" to repair the system.