Windows 7 security update KB2850851


  • I have been trying to install update KB2850851 error code 8007371b. All other updates install ok except this one Ive tried Microsoft fix it which says problem solved but when I try again it fails again. I would appreciate any help thanks.
    Friday, August 16, 2013 2:56 PM


  • Hi damo0750,

    Please try the following methods to solve this issue:

    Method 1: Install the update manually.

    1. Manually download the updates from the      Microsoft Download Center
    2. Install it.


    Method 2: Use System Update Readiness Tool.

    The error may be caused because one or more required members of the transaction are not present. Install and run the System Update Readiness Tool to fix errors that occur when you use Windows Update. This tool scans for inconsistencies on your computer and fixes them as it's being installed.

    For your information, please review this KB article System Update Readiness Tool fixes Windows Update errors in Windows 7, Windows Vista, Windows Server 2008 R2, and Windows Server 2008 to get more help:


    Method 3: Reset windows update component.

    Please review this KB article How do I reset Windows Update components? to get more help:



    Lany Zhang

    Sunday, August 18, 2013 4:46 PM