It’s usually after a major update or while updating to Windows 10 but numerous other scenarios were registered as well. Check out the methods we have prepared which have helped others and should help you as well!
What Causes the Alt + F4 Combination to not Work on Windows?
Causes for this problem are not so numerous but it will still be useful to check them out as you can try out the solution better adapted to your scenario. Check out the list below:
Solution 1: Toggle Fn Lock Off
The F1-F12 keys can be used as standard function keys but they often have special multimedia functions if they are pressed while holding the Function (Fn) key on your keyboard. However, there is the Fn Lock option which, when turned on, makes the F1-F12 keys behave as if you’re always holding down the Fn key. This can be turned off in BIOS easily if you follow the instructions below!
Solution 2: Edit a Registry Entry
This method might be useful if Windows has disabled the key combination’s function completely by mistake. This can be undone in the Registry Editor simply by changing the value of a registry entry. Make sure you follow the steps below carefully!
Solution 3: Update the BIOS Firmware on Your Computer
Sometimes the problem can be blamed completely on your computer’s BIOS, especially if you have recently performed a system upgrade or if you have installed new devices. Updating BIOS can be a tricky process and the problem is that it differs vastly from manufacturer to manufacturer. That is why you should follow the steps carefully if you want to solve the problem.
Solution 4: Reinstall the Keyboard Drivers
Users have reported that installing the latest drivers available managed to resolve the problem for them without having to change any advanced settings. Keyboard drivers can be found on the manufacturer’s page.
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