| Problem | Likely cause | Solution | |---------|--------------|----------| | Pressing F5 turns on airplane mode / changes brightness | Laptop is in "media key mode" | Hold while pressing F5, or toggle Fn Lock | | F5 does nothing in browser | Key may be disabled or mapped to something else | Try Ctrl + R (alternative refresh shortcut) or check laptop utility software | | F5 starts slideshow instead of refreshing | PowerPoint is active window | Click desktop or browser window first, then press F5 |
On many (especially Dell, HP, Lenovo, Acer, Asus), the top row of keys shares two functions: f5 key on laptop
