Art has issues with Windows 10 giving him an error message for shutting down. Leo says that Internet Explorer on Windows 10 isn't the default browser, Edge is. It has been in a kind of unfinished state until recently, though. If Internet Explorer is crashing a lot, Art should clear the history/cache and reset the browser. Leo says that the most common cause of crashing in Internet Explorer is plugins. So there's probably a bad extension in there that's causing it to hang up. It could also be a damaged version of Flash. Art should turn off plugins and see if it works better, or run it in safe mode. If it runs better, then he'll know it's a plugin.
Leo recommends just using Google Chrome instead. It's faster, more secure, and gets constantly updated.