Below cmd will retrieve info about persistent disk that belongs to specific user: Test it for a test account before running directly on production:
Get-ProfileDisk –Username <domain>\<username>
Getting list of detached persistent disks only:
Get-ProfileDisk –Username <domain>\<username> -Status <Detached/InUse/Archiving>
Detaching the PD:
Get-ProfileDisk –Username <domain>\<username> -detachUdd
