If your user account is not an Administrator account, that locks you out of making any meaningful changes using that account, if there is another account that is a full administrator account, using that account to remove and reinstall the drivers will work and there is only one set of keyboards drivers, the drivers are not account specific.
If there is no other admin account on the PC, did you try booting into Safe Mode to reinstall the drivers form there.
Also, did you run the keyboard troubleshooter using this method.
Open Command Prompt, then paste in this command and press Enter:
msdt.exe -id KeyboardDiagnostic
Run that Keyboard Troubleshooter to see if that can solve the problem.