So I wanted to go and play some Guild Wars 2. When I logged in, I couldn't walk backwards. I looked in the settings, and back was bound to s like it was supposed to be. I changed my keyboard, but it still didn't work. So I thaught it might be a glitch with the game and went to play planet side 2, only to realize that there the s key didn't work either. The only time it would work is if you type in the chat box. It also works in every programm but games. I tried running my pc in safe mode, but it still didn't work.
Games where the s key does not work:
Assassin's Creed 3
Planet Side 2
Minecraft
Guild Wars 2
Portal
League of Legends
And probably every other game I were to try.
All my drivers are up to date.
What can I do? Should I refresh my pc?
I am running Windows 8 64 Bit
Any help appreciated.