Hi MartinDavidson1
I am Vijay, an Independent Advisor. I am here to work with you on this problem.
Let's first rule out whether the keyboard hardware is an issue or not. Can you use Keyboard tester and press keys to see if the keys are working correctly or not? If keys work as intended, then problem is not the hardware of Keyboard.
https://keyboardtester.co/keyboard-tester.html
If no hardware issue - Please try these options one by one and check after each option.
1. Till your problem is resolved and you need to do urgent and limited typing, use Onscreen Keyboard - Type OSK in Windows Start Search Box (Cortana) > Click On-Screen Keyboard
2. Run Keyboard Troubleshooter
Type Troubleshoot in Windows Start Search box > Click Troubleshoot > Scroll down and click Keyboard > Run the troubleshooter > Follow onscreen directions
3. Uninstall & reinstall Keyboard Driver
Windows Key+X (Or right click on Start) > Click Device Manager > Expand Keyboards > Right click on Standard PS/2 Keyboard > Uninstall > Reboot the computer to reinstall
4: Turn off filter keys in Ease of Access
Type ease in Windows Start Search box > Click Ease of Access > Click Make the Keyboard easier to use > Ensure Turn on filter Keys is not checked
Source -
https://support.microsoft.com/en-us/help/17417/...
Do let me know if you have any more question or require further help.
Disclaimer - This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.