Started playing the game today, accidentally pressed the windows key instead of alt, which brought up the start menu. Went back to the desktop to reopen the window, but there was no icon for it on the taskbar. The sound/music was still running and the game's mouse cursor was still showing, tried a few key combos to bring the window back up but nothing worked. Finally tried to open task manager to close the program, but instead wound up getting a black screen with the regular mouse cursor flickering on occasionally. Again tried different methods to close everything, but nothing worked. Tried looking up solutions online, but everything said I basically had critical hardware failure (I didn't). Had to hard restart the whole computer for everything to go back to normal.