There are also some functions that can only be performed by fn key such as fn+f5 to refresh, fn+f2 to rename a file or folder, etc.

Launch Windows 8/8.1/10 desktop as per usual; Restart the system. Key what should I do? Recommended way to enter BIOS for IdeaPad, Lenovo Laptops. So a few days ago I (very stupidly) reinstalled windows 10 on my Lenovo Ideapad - Yoga 720 12-IKB from a USB DRIVE.

On laptops, fn key is used as compact layout to combine the keys which are separated to each other. It is a kind of modifier key on many laptops keyboards such as Dell, HP, HCL, Lenovo, etc. Note: If the computer boots fast, you may miss the trick to press F2. Question Lenovo Ideapad 15 battery wont charge: My lenovo laptop is not showing boot menu setup while pressing del button or any function. As a person who uses a lot of different machines I’m used to standard function keys being the default (F2 for rename for example), so it was a little annoying. I recently got a Lenovo Yoga (really pleased so far0, but the function keys default to special shortcuts such as volume and brightness, if you press the Fn key you get the regular F1-F12 keys. This means the drivers and all of the BIOS settings for my Fn keys and Fx keys were lost. The fn key on laptops is defined as “Function Key”.

PC screen will dim off, but it will light up again and display "Lenovo: logo; Press F2 (Fn+F2) key when you see above screen.