I work in the IT industry and as such am able to access all the upto date gear, and some that's so upto date it's not been released yet. That said I have 2 machines on Windows 10 and all the others run 7,8 or Linux. Anything older than that I run as a hyper v or VMware machine.
Just to give you an idea of my computer OS nerdy news, I also run OS X on my Mac which is by no means current, and an Amiga on OS 4, I have a hyper v of everything that MS have made as an archive museum, old install discs from eBay are your friend there, and the crap we throw out at work.
My newest machine built specifically to play ED runs on 10. I did install it with 7 when I first built it and did some bench testing. I then installed 8, and did the same. Finally I installed 10. It runs faster on 10, boots in about 10 seconds, compared to 7 which takes nearly 30 seconds. There are a lot of technical differences under the hood so to speak in 10 but generally it's much less resource hungry.
There is a few things you need to turn off like the annoying feature where it can serve out your windows updates to your local network and other pc's on the internet, this feature eats bandwidth and it saves gigs of space on your hd, if you have an ssd that's important.
Why should I serve out updates to people I don't know on the Internet, just to save M$ bandwidth.
I also turned of Cortana, I don't use Siri on my IPhone, and never used the google voice search on phone or PCs so am not going to need it. Plus paranoia mode, it's set to listen to you if you have a mic on the pc, ready for questions, I don't like that. There's a bunch of stuff that can be disabled, much the same as in Windows 8 and 7 had some M$ snooping built in, agreed 10 has more.
Just for fun I installed it on one of my old PCs that came with 7 and due to the architecture was not able to properly run 7 after all it's updates. Windows 10 runs fine on it, it's useable again. So shows its able to teach an old dog new tricks.
It's not for everyone agreed but my experience with users is after a while they grow to like it, even the old crew who hated Windows xp when it came out. I remember deploying XP people hated it, the same people didn't want their XP stations to go when we sent out 7 to them years later, one even asked if he could keep it to take home. He was blown away when I showed him XP mode in 7
One thing to note some of the old PCs drivers are still being updated in 10 where a system running 7 or 8 says there isn't an update.
My advise to anyone thinking about using 10, who's worried about the changes. Install one of the free Virtual machine platforms on your computer and install 10 onto it, you can try before you buy without a key, try it out to see if you like it.
As discussed here there are ways to get 10 free still, some of the manufacturer based Windows 7 and 8 keys are pre authorised for updates to 10 so you may not need to. Get a Windows key finder to check your key installed and compare it to the sticker on the machine. If they are different you'll likely have a corporate install which may be already authorised, the likes of Dell, HP and Fujitsu to name a few do this. The sticker key is there to licence the individual machine, and for reinstalls without the factory restore discs.
When it comes to change in the IT world I'm a bit of a stick in the mud, but now I'm on 10 I can't go back.
