Windows 8 and 8.1 Forums

KB2903939 won't install. Tried multiple attempts.

  1. #1

    Posts : 1
    Windows 8.1

    KB2903939 won't install. Tried multiple attempts.

    Hi guys, I'm stuck.

    For the past three or so hours I've been trying to install the Windows KB2903939 update. At first, it was automatically installed and so I rebooted the computer to complete the updates. Once it reached 100% it displayed the following error:
    "We were unable to complete the updates. Undoing Changes. Do not turn off your computer."
    I allowed it to reset and booted back into Windows. I tried manually installing the update. Same problem still. I tried running the Windows Update Troubleshooter, it claimed it fixed the problem so I tried it again. Same problem. I tried downloading the updates from the official Microsoft website and installing them from there, same problem. I read online that disabling/uninstalling Avast! may help. Neither worked. Same problem still. So here I am, completely dumb. I have no idea why this small (47MB update) won't simply install. I am NOT wanting to re-install Windows 8.1. It takes too long, and I don't have a disc... I bought my computer with Windows 8 installed and downloaded the free 8.1 upgrade.

    Is there ANYTHING I can do to get this stupid update installed without having to re-install everything?
    My computer specs are as follows:
    Sony T Series Ultrabook.
    CPU: Intel i5-3337U at 1.80GHz (2.7GHz with turbo-boost).
    8GB RAM
    750GB Hybrid Hard Drive (666 GB SATA drive, 25GB Solid State).
    Windows 8.1 64-bit.

      My System SpecsSystem Spec

  2. #2

    Sloe Deth, Californicatia
    Posts : 3,884
    Windows 8 Pro with Media Center/Windows 7

    Have you read the description of that update, and decided it was something you absolutely have to have?

    Sometimes when an update fails is because it is either 1) Not applicable to the system anymore, because a prior update package covered it, or 2) It's not required anymore, I've seen that one last week.

    In general when an update fails, and it wont go in with subsequent tries I then right click on it in Windows Update and mark it as "Hidden"
      My System SpecsSystem Spec

KB2903939 won't install. Tried multiple attempts.

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