Failed to install savxp: uninstalling an older product failed.

Hi skyisbluescreen 

Would you please suggest what is the exact error it is showing under the events? 

Hello there,

I have updated the Event log in the post. All the machines show the below error :

Everything was normal in these devices Sophos was working fine perfectly. However there was 1903 installed they rebooted and boom Sophos AV service goes missing and other ones too.

Hoping someone from the community can help me through.

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I have tried Support:Here is what happens

SDU Logs shared for impacted PC's

Request us back to re install

We Do, and Still same problem.

We Report back, they connect and run a PS SCRIPT or BATCH to remove Sophos, Still issue persists after re install

Request to Re Install the OS

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Hi skyisbluescreen 

Have you tried removing the older version of Anti-virus present using the Sophos ZAP tool? Kindly PM me the case number that you have already registered, so that I can review a few logs. 

When AutoUpdate updates, it always checks the OS of the computer to see if it's changed, you see this in

C:\ProgramData\Sophos\AutoUpdate\Logs\SophosUpdate.log:

2020-06-07T22:37:11.405Z [15968:18684] [v6.4.292.0] INFO =========================
2020-06-07T22:37:11.405Z [15968:18684] [v6.4.292.0] INFO SophosUpdate is starting.
2020-06-07T22:37:11.405Z [15968:18684] [v6.4.292.0] INFO AutoUpdate version : 6.4.292.0
2020-06-07T22:37:11.405Z [15968:18684] [v6.4.292.0] INFO SophosUpdate version : 6.4.292.0
2020-06-07T22:37:11.405Z [15968:18684] [v6.4.292.0] INFO Build : 20200429173443-7acb03303197f5c0731d6b9c4afc467d5c7ff02e
2020-06-07T22:37:11.405Z [15968:18684] [v6.4.292.0] INFO =========================
2020-06-07T22:37:11.405Z [15968:18684] [v6.4.292.0] INFO Platform ID: WIN_10_X64 2004 19041.264
2020-06-07T22:37:11.405Z [15968:18684] [v6.4.292.0] INFO Platform upgraded: 0

The values come from:

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Sophos\AutoUpdate

Platform and PlatformRelease string values.

In the case where the current OS and these differ, then AutoUpdate runs the setup plugins of each of the components.

So under \windows\temp you will see the install logs for each component.  Can you attach the logs of the failed components to this post?

Regards,
Jak

Hello Shweta,

Thank you for your response, Will write to you in more details once we have the results on ZAP Tool.

Looking at the Events and logs it looks like the Monthly patches have caused this problem. 

P.S-Updated the POST title to make it more relevant.

Thanks Jak, Deeper investigations has indicated the Windows monthly security  patches has caused this and not the Build 1909.

We are trying to get a list of devices broken and verify for the timing of events if they match.Also a list of KB's installed that would need to verified which one could possibly cause this problem.

P.S- I have edited the title of the POST as its Windows Update issue and not the build issue.

Thanks Jak, Deeper investigations has indicated the Windows monthly security  patches has caused this and not the Build 1909.

We are trying to get a list of devices broken and verify for the timing of events if they match.Also a list of KB's installed that would need to verified which one could possibly cause this problem.

P.S- I have edited the title of the POST as its Windows Update issue and not the build issue.