Unfortunately we will be forced to buy the product again to. The installation has - perhaps because of their own fault - is not working. Now, the key card is considered used, on the other hand appears when Microsoft account the message that there was no new Office program before and we could buy it ... We spent two full days in the Hoitline are from customer service technical support and sales has passed through the entire call center and finally kicked out. Microsoft is not ready to turn the key again freely, even though the purchase is just as demonstrable as the fact that no operational installation exists. The purchase is strongly discouraged!