2Most laptops have at least one Control (CTRL) key, and standard PCs usually have two. Spritzing the compressed air around each key is a good idea even if not all of the keys are stuck, this will prevent future sticking. Use the compressed air to blow any debris or dust out from the spaces between the keys and the keyboard base.
Try a different USB port (wired keyboard). Re-pair the keyboard with your computer (for wireless keyboards). If you’re using a Bluetooth keyboard, check that it’s powered on and that it’s connected. Visit a service tech/Replace the keyboard
Pick up a compressed air can and give it a good blast, or keyboard cleaning putty to remove any dirt that’s stuck. Run your fingers across the keys to dislodge any debris or dirt that’s left and clean the table when you’re done. Shut down the device, turn it upside down and then tap gently on the base to avoid risking damage to the entire unit.
This happens based on the different characters used in different regions, so the keyboard layouts aren’t the same everywhere. Check The Region Or Language SettingsWhen your keyboard’s language or layout settings are wrong, you may see different letters on your screen than what’s indicated on the keyboard.
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