When you press Windows Key + Ctrl + Shift + B , Windows sends a specific command to the graphics subsystem. It forces the operating system to communicate directly with the video driver, telling it to restart. You will know it worked because your screen will go black for a brief moment (usually half a second), you may hear a beep, and then everything will reappear as if nothing happened. The shortcut does not close your applications, reboot your computer, or lose your place in a document. It simply resets the video driver’s state, clearing any temporary glitches, memory leaks, or stalled rendering commands.
