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High memory usage on Windows 10 1709 VDI With VDA Citrix 7.15 CU3 / DMW.exe causing black screens

Nick Vercampt




The memory consumption in our environment is very high :

OS: Windows 10 1709


VDA: Xendesktop 7.15 CU3

PVS streamed image

Non-persistent desktops


Without any application running we already consume about half our resources

We also see strange behaviour of the DWM.exe process. I think the process should normally use arround 50MB, but in our environment it can use up to 300 - 500MB of RAM and for some users it crashes which causes a black screen (session is still active, but user can't do anything).


Performance options are already adjusted for best performance.

We have disabled graphics card acceleration in Office applications and Internet Explorer.

We have applied the Citrix optimization script.


But still the RAM seems to have a hard time.


Has anyone experienced these high memory issues or the dmw.exe issue before?










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