Prerequisites to run Windows Update v5/v6
 

Warning! Those prerequisites DO NOT APPLY to Windows Update v3/v4!

• 32-Bit - Windows Update Agent 7.6: Download file
   

• 64-Bit - Windows Update Agent 7.6: Download file
   

• 32-Bit - Windows Update Agent 2.0  (Windows 2000 SP3 & SP4 and Windows XP RTM, SP1 and SP2): Download file
   

• ActiveX Component (Windows Update v5 - WUR only - Includes the wuaueng.dll and wuweb.dll patch): Download file
   

• SHA-1 Fix for Windows (Registry Entry): Download file

  Once the prerequisites are downloaded, follow the instructions to enable access to the desired Windows Update websites.
  
  

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  Additional Software (Not required for Windows 2000 & XP)
   

• Golden Browser (for Vista and later users): Visit the download website
   

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    The following files are required to use the Microsoft Update website

• mucltui.cab: Download file
   

• mucltui.cab (WARNING: This file is language-specific and required, even if it has the same name as the previous one!):
  
          Choose the download matching your language:
              - Arabic
              - Chinese (Taiwan)
              - Chinese (Simplified)
              - Czech
              - Danish
              - German
              - Greek
              - English
              - Spanish
              - Finnish
              - French
              - Hebrew
              - Hungarian
              - Italian
              - Japanese
              - Korean
              - Dutch
              - Norwegian
              - Polish
              - Portuguese (Brazilian)
              - Portuguese
              - Russian
              - Swedish
              - Turkish
   

• muweb.cab: Download file

Important! If you're using Windows 2000, you must have at least Service Pack 3 or 4 installed to use Windows Update v5, and Internet Explorer 5.5 or 6.0. If you're using Windows 2000 RTM/SP1/SP2 and Internet Explorer 5.0/5.01, you will have to upgrade either manually through Windows Update v3 or v4, or keep using Windows Update v4. 
   
Instructions set

1. Windows 7 and older - Install the Windows Update Agent corresponding to your system
    
2. Windows Vista and older - Download and apply the SHA-1 Path (.reg file)
    
3. Windows 7 only - Apply the KB3138612 update
    
4. Windows Server 2003 and Windows XP x64 only -  Apply the KB2868626 update
    
5. Windows Vista and newer only - Copy wuweb.dll to system32 or syswow64, then run the command "regsvr32 wuweb.dll" (without the quotes) in the right folder. If you're using Windows Vista, you should also replace wuaueng.dll
    
6. NT5.x systems only - Have a Bootable Ubuntu, Windows Vista or 7 DVD handy, and replace the files wuweb.dll and wuaueng.dll.
    
7. IE5.5 and 6 users only - Enable TLS 1.0 and HTTP 1.1 through proxy connection
    
8. Windows Vista and older - Set up a proxy for Windows Update, we recommend ProxHTTPSProxyMII 1.3a.
    
9. Once all of that is done, you can enjoy the use of Windows Update v5 and v6!