This has happened once before yesterdays update and again this morning. Today I was on facebook watching a video then the video freezes but the sound keeps going. Everything is frozen but the mouse. Pressing the power button, waiting till the screen shuts off then press power again fixes it. Anything you clicked on like a different browser tab while frozen will now be displayed. It acts like everything is still running but the screen is frozen. this was on the Edge browser, Ill try IE only for a few days.