instead of cntl alt del. when the screen pops up, you get your freed up windows mouse pointer over the middle of the screen ( like there is a pop up window there)

hit shift+esc. now left click the game running tab in the taskbar it will pop back up with the error window(s) visible

just keep oking it till you don't see any more repeated errors so you can find out whats wrong. then you can either cancel or shift+esc it again and then right click the game running tab in taskbar to close it