Languages: All Languages | Works on both 32- and 64-bit systems
Product key and installation instructions are emailed immediately after purchase.
Windows 7 Ultimate is the highest in all editions, and was targeted at home PC users. Ultimate and Enterprise editions are almost identical in terms of features, only licensing plans and upgrade options are different.
OEM: Works just as well as a retail key, only that the product key is tied to the motherboard it is installed on.