Hi David,
This issue occurs due to keyboard driver issue.
Let’s try the following methods and check if it helps.
Method 1:
I would suggest you to download the Keyboard drivers from the manufactures’ website and check if it helps.
Logitech keyboard Drives: http://www.logitech.com/en-in/support/keyboards
Method 2:
I would suggest you to run the hardware troubleshooter and check if it helps.
a. Press Windows key + W to search Settings.
b. Type “Troubleshoot” without quotes and click on Troubleshooting.
c. In the new window, click Hardware and Sound.
Method 3:
If the issue still persists, I would suggest you to uninstall and reinstall the Keyboard drives and check if it helps.
Press Windows Key +R, type devmgmt.msc to open the Device Manager.
Hope the information provided is helpful.