Dear Hwy,
Please find below the list of commands in order to boot from the recovery drive:
- Boot from a standard Windows XP Install CD (not a Network Install CD).
- At the first setup screen, hit R to repair Windows using the Recovery Console.
- Select the Windows installation that you would like to repair by entering its number, followed by Enter.
- At the Recovery Console, type each following commands followed by Enter:
- CD..
- ATTRIB -H C:\boot.ini
- ATTRIB -S C:\boot.ini
- ATTRIB -R C:\boot.ini
- del boot.ini
- BOOTCFG /Rebuild
- Set the Load Identifier to: Microsoft Windows XP Professional
- Set the OS Load Options to: /noexecute=optin /fastdetect
- CHKDSK /R
- FIXBOOT
- Type exit to reboot the computer.
This will rebuild the OS back for you.