Ways to fix – Windows Activation failed

Does your windows fail to activate or say Windows Activation Fails upon trying to activate? Many users might have come across this kind of error. Upon trying to activate your copy of Windows over Internet, you might have come across errors with error code 0x8004FE33, 0×80004005, 0x8004FE33. If you are a victim of this then here is the tutorial how you can fix the issue or error.

windows activation failed

To troubleshoot the error on your Windows Vista, 7 or 8 computer, follow the tutorial here.

How to fix – Windows Activation fails

  • Try activating by entering your license key over the Internet during installation or later by using SLUI.EXE 3. If failed to achieve, then activate Windows 8 using the telephone.
  • Activate Windows by Phone
    • To activate Windows using phone, type SLUI.EXE 4 in the search bar and hit Enter to open the following dialog box.
  • Now, select your country from the drop-down menu and click on Next. You will get some toll-free phone numbers. Call any one of mentioned numbers
  • When the operator comes on-line, you are asked and provide the mentioned numbers to the other person. You then receive a Confirmation ID, which you need to enter
  • Once you have completed, click on Activate.
  • After activating your Windows, you can see the Licensing Status and Activation ID of your Windows OS with slmgr.vbs.
    With the procedure described above, you can activate any version or edition of Windows OS.
  • Configure Proxy Server
  • Some advanced users may require configuring the proxy server in order to disable basic Authentication or exclude the URLs, as suggested by Microsoft, You can visit the sites mentioned below for Basic authentication:










Upon following the steps described here, you can now easily activate your copy of Windows OS or fix any error related with the activation of Windows OS.

Hope this tutorial helps you resolving error related to Windows activation.


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