Bought this because of the reasonable price for a full install version of Win 7. I emailed their support to get reassurance after receiving the product that it was truly a legal copy and a full install, not an upgrade version. That was because of the ambiguous wording on the install DVD, which was originally with a Dell machine. They responed very quickly and assured me it would install and run Ok. It was shipped and received within a couple of days and was the easiest windows install I have ever done. I suppose that is because of Microsoft and not this vendor but it was still great.
I installed this a as virtual machine using virtualbox on a host Windows 8 Laptop with lots of disc and ram . Works great!
One minor thing to note is that the Dell name appears on some of the screens in th eoperating system. Not a big deal to me but something to know. They can probably be removed if its important to you.

4 weeks after installing product I get a message from Microsoft informing me that this is not a Genuine copy of Windows. Will be returning copy ASAP. Buyer Beware.

This was indeed a copy of Windows 7 Pro and a genuine Microsoft disk BUT, the product key code had obviously been razor bladed off another machine and this genuine but used key code was just stuck in the non Microsoft DVD case. The whole thing had been poorly re-shrink wrapped. This is not a legal way to sell Microsoft OEM software as it can only be used on one machine. Amazon needs to be aware that they are aiding an illegal practice.