Windows 7 SP1 Update Error Code 800F081F

Anonymous
2014-10-07T17:46:09+00:00

Hi,

For a few days now I'm getting an alert in my system tray that Windows cannot automatically search for updates. Clicking on the icon leads me to a message saying that the Windows Update Agent needs an update and a button to do this update. Clicking on the button closes the window, which then opens again after a few seconds with an error message that Windows cannot search for new updates. Error message code = 800F081F.

When I looked at my update history, I see that Windows Update Agent 7.6.7600.320 has failed daily for over a month now. I've already tried several suggestions (some posted on the dutch microsoft community) e.g. clearing the update cache, system update readiness tool, a 'clean' start of Windows, MS Fix It, but to no avail. Checkdisk and System File Checker scans found nothing wrong.

I'm using Windows 7 Home Premium with SP1, 64 bit. Not sure what other information I should provide that is relevant?

Hope someone can help me with this issue. Thanks in advance!

Kind regards,

Paul

Windows for home | Previous Windows versions | Windows update

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  1. Anonymous
    2014-10-24T11:26:48+00:00

    Paul

    Log Name:      System

    Source:        Microsoft-Windows-WindowsUpdateClient

    Date:          23/10/2014 17:24:36

    Event ID:      20

    Task Category: Windows Update Agent

    Level:         Error

    Keywords:      Installation,Installation

    User:          SYSTEM

    Computer:      Paul-PC

    Description:

    Installation Failure: Windows failed to install the following update with error 0x800f081f: Windows Update Core.

    0x800F081F      CBS_E_SOURCE_MISSING

    https://support.microsoft.com/kb/947821/en-gb?wa=wsignin1.0

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  2. Anonymous
    2014-10-24T11:39:47+00:00

    Paul

    Log Name:      System

    Source:        Application Popup

    Date:          23/10/2014 17:19:20

    Event ID:      1060

    Level:         Error

    Description:

    \SystemRoot\SysWow64\Drivers\PzWDM.sys has been blocked from loading due to incompatibility with this system. Please contact your software vendor for a compatible version of the driver.

    You should uninstall Prassi Windows Disc Manager

    To identify what loads when you boot use Autoruns (freeware from Microsoft).

    http://technet.microsoft.com/en-us/sysinternals/bb963902

    With Autoruns you can uncheck an item, which disables it from starting, or you can right click an item and then delete it. If you uncheck you can recheck to re-enable the item. It is a much safer approach than editing the Registry and better than using msconfig.

    Run Autoruns and select the Everything tab. Click File, Save and, using the scroll to the right, change the “Save as type” option from Autoruns Data (*.arn) to Text (*txt). The file name changes to AutoRuns.txt. Click the Save button and upload the file to your OneDrive as a shared file and post as a link here.

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  3. Anonymous
    2014-10-26T20:17:16+00:00

    Hello Gerry,

    thanks again for your help. Here's a link to the Autoruns data:

    https://onedrive.live.com/redir?resid=D4EDCF2B47D2E08D%21110

    Regards,

    Paul

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  4. Anonymous
    2014-10-27T06:29:32+00:00

    Paul

    Please use Autoruns to delete 8 entries where the words “File not found” appear. With Autoruns you can uncheck an item, which disables it from starting, or you can right click an item and then delete it. Click the Everything tab and look for the rows highlighted in yellow.

    The System Update Readiness Tool creates a log file that captures any issues that the tool found or fixed. The log file is located at the following location:

    •%SYSTEMROOT%\Logs\CBS\CheckSUR.log

    •%SYSTEMROOT%\Logs\CBS\CheckSUR.persist.log

    The system root is normally C.

    Please upload a copy of these logs to your OneDrive as shared files and post a link here.

    You seem to have installed two anti-virus products, Avast and Trend. Which was installed first?

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  5. Anonymous
    2014-10-30T22:08:31+00:00

    Hi Gerry,

    1. unchecked the entries in Autoruns.
    2. link to checksur.log

    https://onedrive.live.com/redir?resid=D4EDCF2B47D2E08D%21112

    link to checksur.persist.log

    https://onedrive.live.com/redir?resid=D4EDCF2B47D2E08D%21111

    (both seem to look OK)

    1. Trend Micro was installed first. Came with the laptop, but only had a license for a limited period, so it's not really active anymore and I can probably just get rid of it. Avast is the anti-virus product that I'm actually using.

    Thanks again,

    Paul

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