• Activation fails with error code 0x8004FE33.

• The following errors may be recorded in the Application event log:

Log Name: Application
Source: Software Licensing Service
Event ID: 8198
Level: Error Description: License Activation (SLUI.exe) failed with the following error code: 0x80004005

Log Name: Application
Source: Software Licensing Service
Event ID: 1008
Level: Error Description: Acquisition of Secure Processor Certificate failed. Status Code=hr=0x8004FE33
• Activation is not successful, and you are not prompted for credentials.

Method 1: Do not use Basic authentication
Do not use Basic authentication on the proxy server. However, if you must use Basic authentication, exclude the URLs for the certificate revocation lists (CRLs) from the requirement for Basic authentication. To do this, configure the following list of CRLs to be unauthenticated on the proxy server: • 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

Method 2: Use the telephone to activate Windows
If you cannot use Method 1, click Use the automated phone system in the Windows Activation Wizard to activate Windows over the telephone.