If you're having problems with your Chromebook keyboard not working as expected, here are a few things you can try to fix it.

If the Delete key on your keyboard is not working on your Windows 11/10 PC, check the key physically, disable Sticky or Filter keys, remap the key, etc.

Try another keyboard to see if the problem carries over and/or purchase another keyboard--they're relatively inexpensive and this one may be toast.