Per Ed Cryer:
I want Win7! I want Win7!
This site offers Win7 Pro for 13.99 GBP.
https://goo.gl/rBddg4
No clue as to that site, but I found out the hard way that some retailers
sell "Bad" copies of 7.
i.e. You pay your money, they send you a key, the key works.... but sometime
later MS tells you that key is invalid and your copy of 7 starts slowly
committing suicide until you supply a valid key.
Been there, done that.
Can't recall where I got my "Good" (so far....) copy, but it was one of the
big-name retailers like B&H or NewEgg.
--
Pete Cresswell