hello,we just bought a technet subscription. We are going to use technet s keys for windows 7 and office activation on our computers. We are 6 people but most of us have more than 1 computer. Questions are : -if we activate same key -(for example same windows 7 key)-more than 1 computer by mistake,microsoft will blacklist the key or block the account as a fraud? -Is there a activation-time limit for each key like max. 1 key can be activated in 1 month?