High CPU because of storage service StorSvc in Win 10 multi-session in Azure virtual desktop

[bacharbader]

Hello,

I have Azure Virtual Desktop multi-session Windows 10 VMs (release 2009 with latest updates). pooled host pool. 

I noticed that StorSvc (storage service) runs system process svchosts.exe reach up to 99% of CPU (starting from 50% and increasing). I already ran The Virtual Desktop Optimization Tool recommended by Microsoft that disable Storage Sense using this registry setting of default user profile:
{
"HivePath": "HKLM:\\VDOT_TEMP\\Software\\Microsoft\\Windows\\CurrentVersion\\StorageSense\\Parameters\\StoragePolicy",
"KeyName": "01",
"PropertyType": "DWORD",
"PropertyValue": 0,
"SetProperty": "True"
},

This issue become a real problem when multiple users using the same host (4 or more).

I also noticed that after around 4 hours this process stop by itself. 

Any advise how can I prevent this ?

Thanks

Bachar Bader

[#2 · Accepted solution]

I've found that this issue is related to FSLogix in Windows 10 multi-session VM that is a host in AVD. so I will write this again in that channel. here: https://techcommunity.microsoft.com/t5/fslogix/storage-service-storsvc-in-win-10-multi-session-causi...

thanks
Bachar