- Check if there is any stuck key on the keyboard.
- Press at the same time the two keys Windows and R on the keyboard, then type control then click OK
, then the Control Panel window should open
, then open Ease of Access / Ease of Access Center,
, then open the item Make the keyboard easier to use
, then make sure all all the boxes are unchecked for the following items: Turn on Filter Keys , Turn on Sticky Keys , Turn on Mouse Keys and Turn on Toggle Keys.
, then click on Apply / OK at the bottom, and check.
- If needed, go to Control Panel\Ease of Access\Ease of Access Center -> Make the keyboard easier to use -> Setup Filter Keys (located below "Turn on Filter Keys"), then then uncheck the box at the option Turn on Filter Keys when right SHIFT is pressed for 8 seconds, then click OK / OK, and check.