Question Laptop keyboard only works in BIOS

[zuzitsu]

Hello, my laptop is Lenovo Legion Y540. Recently my laptop's keyboard stopped working, sometimes it works on its own but that is very rarely, it only works in BIOS and some fn keys work but nothing more than that, I've tried uninstalling the keyboard driver, I've tried cleaning up the laptop from dust and I've even reinstalled windows 10 but nothing works, my last resort is probably just changing the keyboard itself but it seems like such a tedious process specially since I'm pretty sure it's a software problem if it's working in BIOS.

 

[Lutfij]

Welcome to the forums, newcomer!

I've even reinstalled windows 10
Can you please state where you sourced the installer for your OS? If the trackpad works, can you tell what version(not edition) of the OS you're on? If the keyboard is partially functioning while you're in BIOS, then the issue can't be merely software related.

 

[zuzitsu]

Welcome to the forums, newcomer!

I've even reinstalled windows 10
Can you please state where you sourced the installer for your OS? If the trackpad works, can you tell what version(not edition) of the OS you're on? If the keyboard is partially functioning while you're in BIOS, then the issue can't be merely software related.

I'm not sure what you mean by where I sourced my installer but the installed OS is Microsoft Windows 10 Pro version 10.0.19041 Build 19041, I used a boot device to reinstall windows, during reinstalling the keyboard was also not working, things like that make me not know what the problems is, but I really don't want to go through the hassle of buying a new keyboard for the laptop since I am very busy these days

 

[Nuwan Fernando]

You can try resetting the BIOS if some setting is causing to do this, then it'll revert.

Since you say the keyboard doesn't work during the windows installer too, it might be the keyboard itself if BIOS reset doesn't do anything.

 

[Tatoline]

Can you check the latest updates of Windows and try to uninstall some of them based on the date that the problem started? Please check this conversation and the solution: https://forums.tomshardware.com/thr...-working-in-windows-10.3594465/#post-21695457