Fix: Windows Activation Fails – Windows failed to activate

Speed Up My PC

If you have tried to activate your copy of Windows over the Internet, and failed, with perhaps any of the following error codes, like with error code 0x8004FE33, 0×80004005, 0x8004FE33, you may want to follow this tutorial and see if any of it helps you troubleshoot the issue. While the article may show Windows 8 screenshots or reference Windows 8, the same discussion applies to Windows 7 and Windows Vista too.

Windows Activation fails

If you have tried to enter your license key and activate  it over the Internet, during installation or later by bringing up SLUI.EXE 3 and failed, you have another option and that is to activate Windows 8 using the telephone.

Activate Windows by Phone

To do so, type SLUI.EXE 4 in search bar and hit Enter to open the following dialog box.

acti fon 1 Fix: Windows Activation Fails   Windows failed to activate

Select your country from the drop-down menu and click on Next. You will be able to see some toll-free phone numbers which you can call. Call one of those numbers (Step 1).

activate phone 2 Fix: Windows Activation Fails   Windows failed to activate

When the operator comes on-line, you will required to give the mentioned numbers (Step 2 in image) to the other person, who will in turn give you a Confirmation ID, which you will need to enter (Step 3).

Once done, click on Activate.

Once activated, you may wish to view the Licensing Status and Activation ID of your Windows OS with slmgr.vbs.

As mentioned, you can follow this procedure for activation any version or edition of Windows, including Windows 7 and Windows Vista.

Configure Proxy Server

Advanced users may want to configure the proxy server to disable basic Authentication or exclude the URLs, suggested by Microsoft, for the certificate revocation lists (CRLs) from the requirement for Basic authentication:

  • http://go.microsoft.com/
  • https://sls.microsoft.com/
  • https://sls.microsoft.com:443
  • http://crl.microsoft.com/pki/crl/products/MicrosoftRootAuthority.crl
  • http://crl.microsoft.com/pki/crl/products/MicrosoftProductSecureCommunications.crl
  • http://www.microsoft.com/pki/crl/products/MicrosoftProductSecureCommunications.crl
  • http://crl.microsoft.com/pki/crl/products/MicrosoftProductSecureServer.crl
  • http://www.microsoft.com/pki/crl/products/MicrosoftProductSecureServer.crl
  • https://activation.sls.microsoft.com

These posts about Windows Activation problems may also interest you:

  1. Troubleshoot Volume Activation error codes and error messages on Windows
  2. Fix: Error code 0x8007000D when trying to activate Windows
  3. Troubleshooting Windows Activation States.
Posted by on , in Category Windows with Tags
Anand aka HappyAndyK is an end-user Windows enthusiast, a Microsoft MVP in Windows Desktop Experience since 2007, and the Admin of TheWindowsClub.com, TheGeeksClub.com & WinVistaClub.com. Creating a System Restore Point before trying out a new software or a tweak is always recommended.
  • Xi

    Can we use land-line phone? Can we use public telephone? for getting Confirmation ID? Do Microsoft track them?

  • Rhythmboxer

    I bought a toshiba laptop that came with windows 8 and it always sends me that telltale activation error. I thought about uninstalling windows 8 and then reinstalling it. It’s brand new and it is supposed to work. Jim