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Updated on March 6, 2010
Windows XP
Windows XP

1st Step: Click START

2nd Step: Click RUN

3rd Step: Type REGEDIT


5th Step: Expand SOFTWARE

6th Step: Expand MICROSOFT

7th Step: Expand Windows NT

8th Step: Expand CurrentVersion

9th Step: Click WPAEvents

10th Step: And then double click OOBETimer

11th Step: Erase Everything then click OK (0000 remain)

12th Step: Close the Resistry Editor

13th Step: Go back to RUN

14th Step: Copy this and paste it to run: %systemroot%\system32\oobe\msoobe.exe /a

15th Step: Choose Yes, I want to telephone a customer service......... and click Next

16th Step: Click Change Product Key

17th Step: Type THMPV - 77D6F - 94376 - 8HGKG - VRDRQ then click Update

18th Step: Click Remember Me Later

19th Step: Go back to RUN and Click OK

That's it!!! RESTART your computer....


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    • profile image

      Placid_Storm 2 years ago

      Windows 7 and Vista, Look for a program called "Windows Loader". It works by loading a SLIC.

    • profile image

      Carlos 3 years ago

      when i put this code

      %systemroot%\system32\oobe\msoobe.exe /a

      it says cannot find c\wondows.............

    • profile image

      Muhammad Ismail 3 years ago

      its really works.....very nice

    • profile image

      kman 3 years ago

      did not work .still looking!!!!

    • profile image

      Johnf695 3 years ago

      you have a terrific blog here! would you like to make some invite posts on my weblog? dfebcdaddeee

    • profile image

      not working idiot ? 4 years ago

      not working idiot ?

      not working idiot ?

      not working idiot ?

      not working idiot ?

    • profile image

      donny 4 years ago

      Does anyone have a code that will work for win 7 home prem. ? Please let me know. Thanks

    • profile image

      Sad 4 years ago

      I tryd it and now i cant log in to my lap top , it says :this copy of windows must beactivated with microsoftbefore u can log on, and i try to activate with what u gave: 17th Step: Type THMPV - 77D6F - 94376 - 8HGKG - VRDRQ then click Update

      And its not working, please help

    • profile image

      shutdown 4 years ago


    • profile image

      Xakepa 4 years ago

      When i try to enter first part ot cd-key THMPV system show a message "Only numbers can be used for the confirmation ID."

    • profile image

      Chris 4 years ago

      this DOES work, just use a different product key!

    • profile image

      deekay 4 years ago

      does not work.... :(

    • profile image

      salman 5 years ago

      dude when pasting link in run in 14th step ...window open but nothing written on it.what to do? rply

    • profile image

      SpitfireBettie 5 years ago

      Doesn't work now, granted this was posted 2yrs ago... guess ol Bill Gates got wise. :(

    • profile image

      kk 5 years ago

      not goooooooooooooooooooood

    • profile image

      MJ 5 years ago

      don't work

    • profile image

      nabanendu 5 years ago


    • profile image

      Nipu 5 years ago

      nice trick for changing the product serial key used during registration Windows XP, I was able to change my product serial number to my existing installation, thanks a lot.

    • profile image

      guest 5 years ago


    • profile image

      reallinkz1n1 6 years ago

      Thanks very much for this info, very very useful indeed.

    • profile image

      kland16 6 years ago

      thank you so much!!!!! it really helped.

    • profile image

      pulkit 7 years ago


    • profile image

      sjon 7 years ago

      didn't work for me

    • profile image

      Romel 8 years ago


    • profile image

      lhoyet_88 8 years ago

      Great louiejr2nd!!!

    • profile image

      Ana 8 years ago

      Thankyou soooooooooooooooooooooooooooooooooooooooooo much Louiejr2nd!

    • louiejr2nd profile image

      louiejr2nd 8 years ago

      Thank you wrypatch!

    • wrypatch profile image

      wrypatch 8 years ago from Virginia

      This is an awesome hack that I've had to use many times when someone's computer took a dump and they never wrote down their serial. Works perfectly.