How to Fix an XP Pro Unauthorized VLK Key

Written by john grossman
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You can use a volume license key (VLK) to activate multiple copies of Windows XP in a corporate environment. When buying Windows licenses through volume licensing, businesses receive a single serial number, or VLK, which they can use on the computers that the licensing agreement covers. If the VLK is incorrect, you have to enter a new VLK to avoid limitations such as not being able to install critical updates on the licensed computers. You can do so in just a few steps.

Skill level:
Moderate

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Things you need

  • Valid volume license key

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Instructions

  1. 1

    Click on the Windows Start button and click on "Run." Type "Regedit" in the "Open" field and press the Enter key on your keyboard to launch Regedit, the Windows Registry editor.

  2. 2

    Navigate through the registry by using the left pane. Expand folders and subfolders until you reach the following directory:

    HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\Current Version\WPAEvents

  3. 3

    Right-click on the "OOBETimer" key in the right-hand pane and select "Modify." Change the value in the "Value data" field. You can change it to anything you want. Confirm the changes by clicking on "OK." You have now deactivated Windows and you will now be able to reactivate with the correct VLK.

  4. 4

    Click on the Windows Start button and select "Run" again.

  5. 5

    Type or copy-and-paste "%systemroot%\system32\oobe\msoobe.exe /a" in the "Open" field. Then press the Enter key on your keyboard. This will open the Windows Activation window.

  6. 6

    Click on "Yes, I want to telephone a customer service representative to activate Windows" and then click on "Next."

  7. 7

    Click on "Change Product key" and type the correct VLK in the "New key" box. Then click on "Update." Click on "OK." You have now activated your copy of Windows XP using the VLK.

  8. 8

    Repeat the entire procedure on every licensed computer.

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