After running the upgrade because of error 913, whenever I tried to remove a program a dialog box would appear blocking the uninstall. It would appear also when running any system diagnostics After many unsuccessful calls to Sonos, Norton and Microsoft the final recommendation was to reset the computer. I lost all of my paid for software and three days of my life trying to get help before doing so.
Sonos is responsible for this by making profit their main goal releasing untested software with complete disregard for the customer. Shameless.