My OS is Windows 10. My PC is an Averatec All-in-one. Both the mouse and keyboard came with the PC. Its pretty old but it still does what I need it to. Okay. Let's get this straight from the start. What I did was stupid. Okay now to the problem. I woke up this morning and started my computer. It started up just fine but when I tried to put in my password on the login page my wireless keyboard would not behave properly. I hit shift and It would print out a long string of capital L And so l tried putting in New batteries. And after that the keyboard would not work at all. So I tried rebooting. And still it wouldn't work. So I decided to go to settings then to, Bluetooth and other devices, once there I clicked on what I thought was my keyboard it said: USB RF Combo Device. Here comes the stupid part. It gave me the option to remove it. And so I did it. Now my wireless mouse won't work either. Thank God that I have an older mouse for backup and thank Windows for having an On-screen keyboard. I looked in the Device manager but I couldn't find them. Why did I do this? Because I was thinking that removing them, and reinstalling the keyboard would make my keyboard work. Well I can't figure out how to reinstall them. If any one could help me it would be greatly appreciated.