Windows 10 Cumulative Update KB4054517 fails to install error 0x80070643

Anonymous
2017-12-12T19:55:01+00:00

We just got our "second Tuesday" updates (12/12/2017) on our W10 machine running V1709.

The cumulative update KB4054517 failed with an error code of 0x80070643.

The only thing we've discovered so far is that this machine will not display our other 3 PC's on the network when we select "Network" in File Explorer.  But all three other PC's can "see" and access this PC no problem.  And we ran a batch backup job on the affected PC and it was able to copy files from all three other PC's.  So it's just a display problem in File Explorer -> Network.  

We've run Windows Update Troubleshooter and told it to Apply Fixes whenever it prompted us, and it DID report that it found and fixed three issues:

Potential Windows Update Database Error - Fixed

Windows Update Component Must Be Repaired - Fixed

Check for pending updates - Fixed

After exiting the Troubleshooter, we clicked on "Check for Updates" again and it said "Your device is up to date". 

We noticed that the build number after the "failed" update had changed to 16299.125.  So the system thinks it DID install something newer than it had before, but Windows Update thinks the cumulative patch failed to install.

BTW, the other "Second Tuesday" patches (Adobe Flash KB4053577 and Windows Malicious Software Removal Tool KB890830) both installed OK.

Windows for home | Windows 10 | Windows update

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments

230 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Anonymous
    2017-12-14T19:42:26+00:00

    I would try https://support.microsoft.com/en-us/help/4027322/windows-update-troubleshooter

    and do a https://www.microsoft.com/en-us/software-download/windows10

    first ..take the keep apps and user setting on the install

    Worked for me 

    We are interested in this workaround. 

    QUESTION:  When you select "Keep personal files and apps" from the windows 10 software-download website, does it really preserve all your existing accounts (including local accounts), personal files, settings, and (especially) your installed applications, both Microsoft and 3rd Party?

    If so, we think this might be a good "Plan B" when the Windows Update software messes things up, which seems to happen more and more often since they introduced the new Unified Update Platform and started making changes to Windows Update in the spring Creators Update. 

    For example, last week we were dealing with a false positive from Windows Update (it said it had installed a feature update when it really hadn't), and this week we're dealing with a kind of false negative (it said it didn't install a cumulative update, when it essentially had). 

    It's never a dull moment with Microsoft, but we are an elderly retired couple just trying to keep our PC's current.  We don't really have that much time left on this earth that we can afford to be pulling all-nighters every second Tuesday and every feature update just because Windows Update doesn't perform its only duty properly!

    Was this answer helpful?

    0 comments
  2. Deleted

    This answer has been deleted due to a violation of our Code of Conduct. The answer was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.

    Comments have been turned off. Learn more

  3. Anonymous
    2017-12-14T14:00:22+00:00

    My update failed as well, but Adobe and Malicious Software Removal were successful.

    My OS Build says 16299.125

    If everything is working fine, why worry and going nuts trying to fix it.

    Was this answer helpful?

    0 comments
  4. Anonymous
    2017-12-14T12:20:01+00:00

    I would try https://support.microsoft.com/en-us/help/4027322/windows-update-troubleshooter

    and do a https://www.microsoft.com/en-us/software-download/windows10

    first ..take the keep apps and user setting on the install

    Worked for me

    Was this answer helpful?

    0 comments
  5. Anonymous
    2017-12-14T11:58:17+00:00

    Exactly the same problem. Tried manual installation and it failed. I will try to do clean install :(

    Was this answer helpful?

    0 comments