' Delete an Existing Quota Entry
strDrive = "C:"
strDomain = "fabrikam"
strUser = "bob"
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set objQuota = objWMIService.Get _
("Win32_DiskQuota.QuotaVolume='Win32_LogicalDisk.DeviceID=""" " & _
" & strDrive & """',User='Win32_Account.Domain=""" " & _
" & strDomain & """,Name=""" & strUser & """'")
objQuota.Delete_