hash key

from my windows 7 disk.....how can i tell if its a OEM or FULL RETAIL version...... some mentioned about checking the hash key... there must be a way of checking....thanks

For some odd reason W7 has recently taken to shutting down when I press the # key. It does this even in combination with other keys, like Shift, Alt etc. I don't have much use for the key but sometimes I do use it and almost always forget that it triggers an immediate shutdown. I tried using an...