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Remove Windows XP activation permanently with this handy guide
How.com.vn English: PDF downloadDownload Article

Do you have Windows XP without the genuine serial key? Don't worry -- with a few clicks of the mouse and a little bit of cleverness, you'll be able to make your Windows XP genuine forever. See Step 1 below to begin.

  1. How.com.vn English: Step 1 Click Start, then choose Run.
  2. How.com.vn English: Step 2 Type “regedit” (without the quotation marks).
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  3. How.com.vn English: Step 3 Double click on HKEY_LOCAL_MACHINE or click on the plus sign.
  4. How.com.vn English: Step 4 Click on Software.
  5. How.com.vn English: Step 5 Click on Microsoft.
  6. How.com.vn English: Step 6 Click on Windows NT.
  7. How.com.vn English: Step 7 Click on CurrentVersion.
  8. How.com.vn English: Step 8 Now chose the “WPAEvents” option.
  9. How.com.vn English: Step 9 Right click on OOBETimer and select Modify.
  10. How.com.vn English: Step 10 In the Edit Binary Value window, remove all the values in the value data box.
    Click OK and close the registry editor.
  11. How.com.vn English: Step 11 Go back to Run and type the following command without quotation marks:
    "%systemroot%\system32\oobe\msoobe.exe /a".
  12. How.com.vn English: Step 12 In the Activate Windows wizard, chose the second option.
    It should be “Yes, I want to telephone a customer service representative to activate Windows.” Click on Next.
  13. How.com.vn English: Step 13 Click on Change Product Key.
  14. How.com.vn English: Step 14 Enter your genuine key in the New Key box and click on Update.
  15. How.com.vn English: Step 15 Check whether your Windows XP is genuine (optional).
    Type the following command in Run without quotation marks: "oobe/msoobe /a".
    • If a box appears saying “Windows is already activated," it means your Windows XP is genuine.
  16. How.com.vn English: Step 16 After deleting the WPATimer Value in Regedit, right click on WPAEvents.
    Select Permissions and set permissions to deny for all groups and users. After rebooting, the machine put the values back. If you deny permissions, it can't reset.
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  • Question
    Can we do this procedure in safe mode?
    How.com.vn English: Community Answer
    Community Answer
    Boot up in Safe Mode with Command Prompt. At the cmd window, type "explorer" or "explorer.exe" and then go to the run box (WINDOWS KEY + R). Type the following exactly without the quotation marks: "rundll32.exe syssetup,SetupOobeBnk". This will renew the 30-day activation for Windows XP. Restart your computer after that.
  • Question
    I tried the procedure in safe mode. It worked three times, but doesn't anymore. The rundll.command no longer works. What can I do now?
    How.com.vn English: Community Answer
    Community Answer
    This wiki is just resetting the XP Activation grace period, which you can only do 3 times and then XP stops working. You must enter a legit XP key and activate online or over the phone for XP to keep working.
  • Question
    What do I do if my Windows is unable to find %systemroot%\system32\oobe\msoobe.exe/a?
    How.com.vn English: Community Answer
    Community Answer
    Put a space before the "/a" and see if that works, otherwise do the below:Run>CMDcd %systemroot%\system32\oobe\msoobe /aAnd if that fails:Run>oobe/msoobe.exe /a
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      Tips

      • If you want your Windows XP to be always genuine and not get into any legal problems with Microsoft, you have to disable Microsoft Windows critical updates. Here's how to do it:
        • Go to Start, then to Control Panel. (Be sure that the Control Panel is in classic view.)
        • Go to Automatic Updates and double click on it.
        • Select Turn Off Automatic Updates, and hit Apply. You are done!
        • One more thing: It must be annoying to have alerts every 2 minutes that Automatic Updates is turned off. So to remove the annoying alerts, you have to double click the small "red" icon where the clock is situated in the extreme bottom right. The Security Center will appear and on the left there will be some options. Be sure to select the "Change the way Security Center alerts me" option and uncheck the "Automatic Updates" option.
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      About This Article

      How.com.vn is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 32 people, some anonymous, worked to edit and improve it over time. This article has been viewed 866,353 times.
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      Co-authors: 32
      Updated: February 10, 2023
      Views: 866,353
      Categories: XP Instructions
      Article SummaryX

      1.Modify the OOBETime registry key.
      2.Start the Activate Windows wizard.
      3.Select the option to call a customer service rep.
      4.Click Change Product Key.
      5.Enter your key.
      6.Click Update.

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      Thanks to all authors for creating a page that has been read 866,353 times.

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