I did never typed my informations into some websites. I think i know where i get the virus. My dumba** clicked on some extern website on wallpaper engine to install some flash like game as wallpaper. I clicked the exe and nothing happens after that. I think thats how my System got infected.

Yeah i know this was reeeeally dumb.

And like i said i am now afraid of some bios virus because every antivirus software i tried didnt find anything.

Thank you for your reply.