Windows Updates fail after Windows Update Agent 7.6.7600.320 installed

I have several Windows 2008 R2 Servers (hyper-V guests) that Windows Update now errors with code 80070020

This seems to be after Windows Update Agent 7.6.7600.320 was installed (last update listed)

I have tried removing Windows Update Agent 7.6.7600.320 but can't find it listed anywhere under Installed Updates
ARamptonAsked:
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Hypercat (Deb)Commented:
I had the same problem, but it corrected itself after a few days, I don't know why.  Updates to the Windows Update agent can't be uninstalled, so I was pretty upset when I started getting those errors.  When did you install the agent?
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ARamptonAuthor Commented:
First installed 01-08-2014 and another 28-08-2014 but none have corrected them selves yet
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Hypercat (Deb)Commented:
Hmm, that is a lot longer than I had to wait. When you look at the Windows Update window, I think you should see another prompt to install the update agent again.  Now that I think about it, I recall that's what happened with mine, as if the first install had failed or a second update had been issued to correct whatever the original issue was. Are you getting that prompt?
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ARamptonAuthor Commented:
Problem has been identified with a conflict between Windows Update Agent 7.6.7600.320 and Backup Exec 2010 R3 Continuous Protection Agent Filter Driver and only observed on Windows 2008 R2

Disable [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\CpsFsJnl]
"Start"=dword:00000004

Restart Server

Windows Updates then process correctly
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ARamptonAuthor Commented:
Own solution is only resolurtio so should be marked as accepted solution
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Seth SimmonsSr. Systems AdministratorCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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Windows Server 2008

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