@leao magno

Do you have a sort of special keyboard (like Logitech gaming series or Microsoft sidewinder)? If the drivers for those are not installed properly it could harm the functions of some buttons.

@biowulf

That should be it. IR is definitely infrared.
What do you mean by you can't de-install it? You are logged in as administrator, right? (Because if you weren't, you could have not started the device manager)
Select the "Consumer IR Devices", right click on the item, and select "deinstall"

BTW: Before handling around with the device manager, I suggest to create a restore point (http://windows.microsoft.com/en-us/w...-restore-point)

XSamatan