If the shortcut doesn't work, you may need to adjust your hardware settings: How to access F1-F12 keys without pressing FN keys first?
Use the arrow keys to find a tab labeled Main , Advanced , or System Configuration . use function keys without fn
Press Windows + X and select Mobility Center . Some laptops (especially Dell) have a "Function Key Row" setting here where you can choose between "Function Key" and "Multimedia Key." If the shortcut doesn't work, you may need