Why do Windows updates fail with the error code ‘Code 8000 – FFFF’?

Larry March 10, 2011

I get the error code ‘Code 8000 – FFFF’ on my Windows Vista. I can’t seem to do any Windows updates. Is there a way to fix this so that I can do normal updates. Please advise.

    March 14, 2011 at 12:00 pm
    March 14, 2011 at 11:48 am

    Hello you could also run the following batch file to fix windows update. To do so follow the next steps:

    -- Open Notepad
    -- copy the following commands
    net stop wuauserv
    regsvr32 wuapi.dll
    regsvr32 wuaueng.dll
    regsvr32 wuaueng1.dll
    regsvr32 wucltui.dll
    regsvr32 wups.dll
    regsvr32 wups2.dll
    regsvr32 wuweb.dll
    net start wuauserv

    -- paste them in notepad
    -- On menu, click on File
    -- select save as
    -- on box that pops up, find the on save as type box at bottom of box and make sure to select all files
    -- On File name box at bottom, type update.fix
    -- add extension .bat to end of name, it should look like the following: update.fix.bat
    -- select a place to save your file that is easy to find, like your desktop
    -- click on save
    -- now that batch file is saved, go to the place you saved it and
    -- double click on it to execute it
    -- when it asks you if you want to add it to registry, click on yes
    -- you are done. Try Windows Update

  3. Tina
    March 14, 2011 at 12:32 am


    did any of the solutions suggested above solve the problem and are you able to install Windows Updates now? Please let us know what worked for you or whether you need more help. Thank you!

    • NoviceLearning
      June 18, 2011 at 10:43 pm

      Correction Either Mike’s Mar 10, 2011 solution and/or Fidelis’ Bath file solution on Mar 14, 2011 works! Thanks guys for sharing your knowledge! I did get a few rejected lines for the batch file (not recognized): regsvr32 wuaueng1.dll, regsvr32 wucltui.dll, regsvr32 wuweb.dll. Does any know why?

    March 11, 2011 at 5:08 am

    Hello, try running the tool on the following link on aggresive mode. You can run this tool in two different modes; default and aggresive. Try running it on default mode and test. if it does not work run the tool on aggresive mode.


  5. Mike
    March 10, 2011 at 10:55 pm

    There is a known problem with a previous Hotfix on Vista:
    1. open Control Panel and navigate to "Add or remove programs"
    2. click on View installed updates on the left hand pane
    3. locate KB929777 and deinstall it
    4. try running Windows Update again

    If this doesn't help try the Microsoft FixIt solution

  6. Anonymous
    March 10, 2011 at 6:31 pm

    Look in Windows Update history and see if any previous updates have failed, try and manually download the file and install.

    Reboot and try Windows Update again.

    Also check your WindowsUpdate.Log for any clues of "FAILURE" or "FATAL ERROR".

    Location is at: %windir%WindowsUpdate.log

    Typically this will be: C:WindowsWindowsUpdate.log

    To do this in Windows Vista go to the Start Orb --> Control Panel --> Administrative Tools --> Services --> Double Click "Windows Update Service" --> On General Tab for this service select the STOP button under Service Status.

    2) Rename the SoftwareDistribution folder in C:Windows to SoftwareDistribution.old

    3) Re-Start the Automatic Update/Windows Update service. (...use the instructions in no.1) above.

    On the next Windows Update, Vista will rebuild the folder C:WindowsSoftwareDistribution

    Some important Windows Update system files may need to be re-registered with the operating system.

    In Windows Vista go to the Start Search box on the Start Menu, and type:

    regsvr32 wuapi.dll

    ...and then press Enter.


    When you receive the "DllRegisterServer in WUAPI.DLL succeeded" message, click OK.


    Please repeat these steps for each of the following commands:

    regsvr32 wuaueng.dll

    regsvr32 wuaueng1.dll

    regsvr32 atl.dll

    regsvr32 wucltui.dll

    regsvr32 wups.dll

    regsvr32 wups2.dll

    regsvr32 wuweb.dll

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