This morning I tried to open a photo in the Photos app and got a File system error. When I tried to open Start, it didn't open, tried Notification bar - same. No big deal, I need to reboot my laptop (this have happened before). During the reboot the keyboard remained lit up in green color, after the reboot, at the PIN screen the buttons didn't work and the backlight was not cycling through colors. I used the on screen keyboard to enter the PIN, in Device Manager the keyboard group is missing. Mouse works, tried rebooting (power button), restart from Start menu, Shut down, Find legacy devices in Device Manager, fix registry errors - all of this failed. I have a wireless keyboard, that I've yet to test if it's working or not (needs to be charged). My laptop is Asus ROG GL553VE.