Turn off the Filter Keys, Sticky Keys, and Gaming Mode. If this doesn’t help, try updating the drivers and if the problem still persists, run the keyboard troubleshooter. You need to also physically clean the keyboard and keys and see if that helps.
Why is the at symbol not working?
This has happened because a recent Windows 10 update changed the default language and region settings to US English. To fix it, click the Windows button in the far left hand corner of your taskbar (or tap the Windows key on your keyboard) and start typing “Region & language settings”.
Why is my at key not working on keyboard?
Dust, dirt, hair, and other debris can fall into the keyboard over time and obstruct a key’s movement or interfere with its circuitry. Try removing the key that isn’t working, and clean the area under and around it. How to remove the keys on a keyboard.
