Hello Roxl: -) I got a pop-up from the HMPA Icon in my Task Bar stating an upgrade would be installed upon reboot. I am running a WIN 10 AU 64X OS. My PC did hang on shutting down/restarting but after a hard reboot my PC started with no issues. My HMPA Upgrade was to 3.5.3/362. It appears to not be causing any issues. My WIn 10 upgrade was from an OEM version of Win 8.1, so I assume it is not the Pro version.Dunno if that accounts for the differences between our experiences with HMPA 562.