bjohn
Enthusiast
Enthusiast

Windows 10 file corruption

We created a Windows 10 1607 pool recently. If I run a /sfc scannow on the master image, it completes without errors. We created a pool of machines from this master image. Out of the blue, we have machines that are blue screening, start menu stops working, programs stops working etc... When we run sfc /scannow on the linked clones, we are finding errors. The storage is on a VNX 5300, and according to the storage group, there are no errors on the disk.


Wondering if anyone has any clue on what could be causing file corruption. We recently upgraded to 7.2.0, but the agent on this pool is still 7.0.2. The issues were happening prior to us upgrading to 7.2.0. Thanks

26 Replies
BenFB
Virtuoso
Virtuoso

Did you ever get to the bottom of this? At this point we believe we've definitively narrowed this down to our antivirus.

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bjohn
Enthusiast
Enthusiast

No, I never did, still happening unfortunately. We are using Symantec SEP.

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BenFB
Virtuoso
Virtuoso

At this point we feel confident that our issue was a result of our antivirus. I'd make sure you have all of the correct exclusions in place and work Symantec to see if they can resolve it.

Are you using any app or profile virtualization tools? We find that those in conjunction with our antivirus were not playing nice.

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jseide86
Enthusiast
Enthusiast

Picture gallery

Same as you're seeing?

I experience it on perhaps 20% of our virtual desktops. Runs on different hardware (UCS M4 blade & racks).

The corruption usually shows itself after a reboot or after windows updates. Most machines never recover from it. My users are furious :smileyplain:

Windows 10 1709

VM Tools 10.2.5

Horizon Agent 7.5.1

UEM 9.4

Trend Micro OfficeScan

Updates via WSUS (no FoD)

EMC XtremIO storage via Fiberchannel

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BenFB
Virtuoso
Virtuoso

Can you post the image here?

Your symptoms sound the same as ours (Our environments are nearly identical including XtremIO on FC). We have not seen this issue since our anti-virus was reviewed and tweaked to play nice with Windows.

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jseide86
Enthusiast
Enthusiast

Sure. Attached.

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BenFB
Virtuoso
Virtuoso

The plan that VMware laid out for us was to test with a new vanilla image built from a Windows ISO. We didn't see any issues with that so we added one piece of software at a time until the issue returned (When we added our anti-virus back). I would advise doing the same to determine where your issue is.

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