Uncheck the option "Check For Newest Version Upon Start Up And Once A Day" located in the Options - Startup tab.
Thanks for your advice! Actually, it hasn't been all bad, there is always a silver lining. As I've had to load the Proscan updates once a week for months on end, because of the way my options are setup in Proscan. But, through that, I've gained significant experience with that aspect of Proscan that I can do it in my sleep, but not when I'm out of town, LOL!
When the Newest Version popup appears, it doesn't shut down the audio, or the feed, or automatically install the update. I'm not sure what you mean by scanner shuts down but if that means the serial port stops working or the Ethernet (on Ethernet supported scanners) then I suspect the computer is rebooting due to a Win Update.