Server 2016 Rolling Back April's CU

lawalberts · Apr 20, 2020

Hi there, we have a Windows Server 2016 system that's failing to install April's Cumulative Update.
The update completes the initial install, but fails and rolls back during the reboot.

SFC detected some corrupt system files but was unable to repair them. I managed to get DISM to repair the corruption, but the update is still failing to install.

SFCFix, FRST, and CBS logs can found here.

Any help would be appreciated!

Thanks

Sysnative Windows Update · Apr 20, 2020

Hi!

Are Hyper-V or IIS enabled on the Server?

If yes, please try to temporarily disable them and retry updating.

lawalberts · Apr 21, 2020

Thanks for replying! The server is not running Hyper-V or IIS.

Sysnative Windows Update · Apr 21, 2020

Hi!

Thanks. Please temporarily uninstall Sophos and then retry updating.

lawalberts · Apr 21, 2020

Sorry, should have mentioned that this has been tried already. Same results with Sophos uninstalled.

Sysnative Windows Update · Apr 21, 2020

When did you first notice the problem?

lawalberts · Apr 21, 2020

First noticed it a couple weeks ago when trying to install March's cumulative update. Tried installing April's update during troubleshooting and saw it failing the same way.

Sysnative Windows Update · Apr 21, 2020

Did you try creating a local account with Admin privileges and installing the update from there?

lawalberts · Apr 21, 2020

Just tried that, but unfortunately no change.

Sysnative Windows Update · Apr 21, 2020

Please retry in Clean Boot mode: https://support.microsoft.com/en-us/help/929135/how-to-perform-a-clean-boot-in-windows

lawalberts · Apr 22, 2020

Well that did it! Thanks a lot for the suggestion.

So it seems like a third-party service was interfering with the update somehow?

Sysnative Windows Update · Apr 22, 2020

Awesome! Yes.

lawalberts · Apr 22, 2020

I was able to confirm the software causing the issue by disabling its service on another one of our problem servers, and updating it. Thanks again for your help!

Sysnative Windows Update · Apr 22, 2020

If you don't mind me asking, what was the software causing the issue?

lawalberts · Apr 22, 2020

Not at all. We recently started an AD migration using Quest Migration Manager. Turns out its agent service deployed this past month is causing the issue. We've opened a case with their support to sort things out.

Sysnative Windows Update · Apr 22, 2020

Thank you for the information.

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Server 2016 Rolling Back April's CU

lawalberts

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Sysnative Windows Update

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lawalberts

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Sysnative Windows Update

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lawalberts

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Sysnative Windows Update

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lawalberts

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Sysnative Windows Update

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lawalberts

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Sysnative Windows Update

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lawalberts

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Sysnative Windows Update

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lawalberts

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Sysnative Windows Update

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lawalberts

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Sysnative Windows Update

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