On July 17, I purchased, from Amazon, an upgrade disk from Vista to Win 7. Remember that their return policy is limited to 30 days! I received and installed the new softwaree and all was well for 30 days. On the 31st day of use I got a message that I needed to "validate" the software. As requested, I entered the "key" provided with the disk. Upon entry, I got the message that I had an illegal copy of Windows 7.
