I did the free upgrade from win 7 to 10 some time back. Didn't like 10 even a little bit, so I went back to 7. Now that 7 is nearing the end of it's life and I'm forced to upgrade, will I have to buy 10, or is there an OS fairey somewhere that knows I got it for free once? This bears on my decision as to weather or not I move to Linux.
