I was trying to install windows 7 on a new PC. I made a bootable stick using rufus and after going into the bios and booting from the stick windows 7 loads all fine and dandy but as soon as the loading screen is over and im greeted by the "Install Windows" screen where im first asked to choose install language, time and currency format and the keyboard input layout i cant do anything. my mouse and keyboard wont work, i cant choose any options or continue the installation. I have tried unplugging and plugging both mouse and keyboard back in while in this screen and i made sure that both of them are plug and play, meaning i dont need a driver installation first. they shouldnt be the problem, i assume i did something wrong with the boot stick?