So when i push the up, left arrow and the spacebar(on my keyboard ofc) my keyboard stops working and i hear a beep sound every half second, but when i release the buttons the keyboard is ok again. Why is this happening and is there a way to disable this? Windows 7 Home Premium, 64 bit

Go to device manager select 'view' at the top of the screen and choose "show hidden devices" this will open a group called "non plug and play" find the one named "beep" double click and simple stop the service. Then on the dropdown underneath selet choose "disable" to stop this service from starting up again click "ok" and you won't recieve the beeps.