Reply To: Windows + . HOME › Forums › Technology › Windows + . › Reply To: Windows + . May 20, 2020 at 1:01 am #32826 AdrianaModerator FUNKY KINGFUNK: 21,270Rank: Diamond-Back Gorilla Windows + L locks the PC. Cheeky! One annoying Windows shortcut that my cats knew, but I didn’t, was Ctrl + Alt + Up Arrow. Found out about it the hard way, after they rotated my screen when they stepped on the keyboard.