StoreFront Upgrade Failure:"An error occurred creating the snapshot: 'System.InvalidOperationException: Cannot stop CitrixSubscriptionsStore service on computer."

Event ID 0:" Installation of '..\CitrixStoreFront-x64.msi' failed with error code 1603. Fatal error during installation." CitrixMsi-CitrixStoreFront-x64 log file under C:\Windows\Temp\Storefront\ "An error occurred creating the snapshot: 'System.InvalidOperationException: Cannot stop...