Windows 10 v1903 winsxs folder growing out of control

[vmmaj]

Hi all:

Having an issue i need to fix ASAP.

I have updated my golden image to windows 10 1903. I recomposed out the the linked clones all went as it should. A day later there was a major growth spurt in the datastore where the OS disk lives. This surprise growth caused the datastore to fill and the desktops to freeze up. I should mention that this growth spurt all happened at once, it was very sudden and over a 1 hour period that it grew.   NOTE: My clones Windows update service is off.

While trying to figure out what the heck happened i found that huge amounts of files changed\added in the winsxs folder causing about 8GB of perceived growth to each desktop. Doesn anyone know if this will be a one time thing from going into v.1903 or am i looking at this kind of problem going forward.

I do all my WSUS updates on the golden image and have a Group Policy setting to disable the WSUS service on the clones.. Is there anything more i can do.

Thanks

Martin.

[Hotrod76]

Hi, I did find the below Microsoft article.  Do you know if branch caching or delivery optimizations are enabled on your master image? 

Optimize update delivery for Windows 10 updates (Windows 10) | Microsoft Docs

[vmmaj]

thanks for the reply. the delivery optimizations are disabled as is Windows Update Service.

Another fun twist to the update is about 20% of the users can no longer use calculator.. the fun just continues

[NxN_Slite]

have you done the compression / resetbase of your GOLDEN image and ./net optimisation??

Dism.exe /Online /Cleanup-Image /StartComponentCleanup /ResetBase

what would compress winsxs

c:\Windows\Microsoft.NET\Framework\V4.0.30319\ngen.exe executeQueuedItems

I hope this will help you..

Have a nice day.

Edit: Additional Information

You could also install BISF to do a lot of task on your golden image (on top of Optimisation Tools)

https://eucweb.com/download-bis-f