Error C000009A on Windows 7 SP1 install RRS feed

  • Question

  • Question

    Error C000009A applying update operation 116664 of 325874 when trying to Install Windows 7 SP1. I cannot get SP1 to fully install on computers running Forefront Endpoint Protection.

    We are experiencing new issues wit hte RTM SP1 release for WIndows 7.  THe RC and Beta installed with no errors.  Now, upgrading to to the RTM SP1, we are comming across errors that we can not find solutions to.. This is just one of them.. (all Microsoft Domain joined machines)


    Any advise (Helpdesk doesnt know either)

    Friday, March 4, 2011 11:46 PM


  • can you rollback to RTM? If yes, remove the all installed MUI packs with "C:\Windows\System32\lpksetup.exe" and install the Sp1.

    "A programmer is just a tool which converts caffeine into code"

    Want to install RSAT on Windows 7 Sp1? Check my HowTo: http://www.msfn.org/board/index.php?showtopic=150221
    • Proposed as answer by Miya Yao Tuesday, March 8, 2011 6:03 AM
    • Marked as answer by Miya Yao Friday, March 11, 2011 10:11 AM
    Saturday, March 5, 2011 3:51 PM