Symptom: ============== When you do a backup you get an error 0x81000019, the message is: "A shadow copy could not be created. Please check the 'VSS' and 'SPP' application event logs for more information. Details: Insufficient storage available to create either the shadow copy storage file or...

Update: Microsoft has released a hotfix to solve this problem Hotfix Package 4 for Microsoft Application Virtualization 4.6 RTM: October 2010 http://support.microsoft.com/kb/2432513 This is a server backup issue. On a Windows Server, you install App-v 4.6 and Q(or other drvie letter) drive will...