fin, I'd very much like to find that myself. Have you looked using GooGoo, pprune.org/compter . . . etc., etc.? Much more powerful tool than our own Search.
Those 'upgrading' and comforted by being able to go back, be mindful of certain issues. I ran Disc Cleanup - just wondering about the Windows Old that lasts nearly a month before being removed. It did not show up.
Looking straight at the folder I find 34GB in it! I have the Office starter thing plus the Real Office awaiting a key - but not much else.
It might be that my odd laptop's issues of an abysmally long boot time might be explained by this. But going back is not always so smooth and possibly Disc Cleanup is simply overwhelmed. As am I at the moment.
Reassurances about just downloading W7 and starting again with an ISO are getting more and more problematical. Putting in the key before the download is allowed seems very usual now - I'd love to know if it can be bypassed - but I put my label Key in this evening and it said I had to go to Sony for it. It's all getting more an more tedious but at least their wording implied they recognised the legal key.
BTW. Don't know if I've mentioned it, but when the 10 alighted on my laptop, it had a new Key. (according to Belarc.) This time with no mention of the OEM in the pre sequence of the Key.
Put the SSD in my Vaio i7 and hit it with my rhythm stick. 5 minutes is now 28 seconds, but there's not much loaded especially drivers. It's the first install I've done where the wi-fi hasn't hooked in. Still it was nice to see just how blindingly fast an SSD can be when yellow wired to the router.