I thought about that. I've tried it in safe mode and it still doesn't work.That seems odd, lets see if something blocking them
Try a clean boot and see if it changes anything - make sure to read instructions and make sure NOT to disable any microsoft services or windows won't load right - https://support.microsoft.com/en-au/help/929135/how-to-perform-a-clean-boot-in-windows
if clean boot fixes it, it shows its likely a startup program. You should, over a number of startups. restart the programs you stopped to isolate the one that is to blame.
https://windows.tips.net/T011563_Using_an_On-Screen_Keyboard.htmlThe on-screen keyboard looks a bit different from one version of Windows to another. It can be resized by clicking and dragging its edges or corners. You use the keyboard almost like a mechanical keyboard, but you type characters by clicking them. If you need to enter a multi-key sequence (e.g., Ctrl + C to copy selected text to the clipboard), click the modifier key first (i.e., Ctrl) and then click the second one (i.e., C).