I have a Toshiba Satellite C55-A5195 Windows 7. Just the other day I didn't have to hold down the FN button in order to use any of the F1 to F12 buttons. But all of a sudden I have to hold down the FN button if I want to mute the volume, change the brightness on my computer, etc... and it is really inconvenient for me to have to keep holding down the FN button if i want to use any of these functions. I am completely clueless when it comes to computers and was wondering if somebody could help me fix this problem.
I have tried the following
Going to BIOS and changing the function key setting
Going to Flashcards
Going to all programs, toshiba, tools and utilities, keyboard