In September, Microsoft had planned a version of "demo" of Windows 7 for companies interested in testing software. This is free and available 90 days. After that you have clearly pay a real license, if the OS stops each hour. This demo must be offered initially until 31 March 2010, but - as can be seen - it is always available, as Microsoft has decided to propose offers a few more months. in fact, it is possible to download this demo until December 31, 2010.

Note that Windows 7, both in business and the general public tends to be implementing faster than Windows Vista in its time, but it should be said that the returns are much better for the last Microsoft OS than its predecessor.