Windows 10 Cumulative Update KB4054517 fails to install error 0x80070643

Anonymous

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.

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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.
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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!
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Anonymous

2017-12-14T19:47:35+00:00

Everything was their.

I was amazed.

The Microsoft person said some of my files were messed up

but the new Win10 ISO fixed it
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Anonymous

2017-12-14T19:58:05+00:00

thanks happy holidays
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