So I just finished building my pc I installed windows 7 and started to install the driver I left them to download 10-15 minutes later I comeback to find that my mouse won't move and the keyboard doesn't respond. I have a asus progaming h170 mobo.
Sometimes, when installing new drivers, peripherals using the old drivers stop working. Try re-booting your PC. If that doesn't work, you might try rolling back to the old drivers.
Good Luck!