Windows XP - How to reinstall XP without reactivating it

December 2016

This trick works once a first activation has already been made and should be very useful to persons who frequently re-install their OS.
Note: Works for both Windows XP Home Edition and Professional

Follow the steps below:
  • Make a search for the file wpa.dbl, or look in C:\Windows \system32 \.
  • Make a copy of the file (on disk, partition or other disk ...).
  • Restore it after upgrading Windows XP.
  • Reboot the PC and test if the activation is operational. To do this, follow this procedure:
    • Click on Start / Run and type this:

C:\windows\system32\oobe\msoobe /a
    • If that does not work, type the following command:

oobe/msoobe /a
  • A window "Activate Windows" should appear which means that Windows XP is actually enabled!!!

Related :

This document entitled « Windows XP - How to reinstall XP without reactivating it » from CCM ( is made available under the Creative Commons license. You can copy, modify copies of this page, under the conditions stipulated by the license, as this note appears clearly.