@Tomas Polak: I think there's no catch in free upgrade - it's good for Microsoft to have all customers on most modern platform, I think they are worried that win7 will become the new winXP.
@H Martin Shoemaker: Windows 7 is still readily available. If I was building a new computer I would have Windows 7 installed. There are still many months for a free upgrade to Windows 10. Until I can control what updates get installed and when I will not be upgrading. I can't afford to walk into the office and find all the computers in "blue screen" because of a defective update or to have production stop because Microsoft decided to push an update in the middle of the day and the computers have to go through a reboot.
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