Re: Windows 10
I tried 10 sporadically (dual boot with 7). As of right now 10 just sits there taking up space and never used. Win 7 does everything I need it to do right now without all the unfinished/unliked aspects of 10.
The biggest turnoff for me is the collection of personal information. Microsoft says it uses this either to personalize your computer or to help make 10 a better operating system ...
What specific information is collected nobody seems to know. While there are ways to turn some of this off, it's either not completely off, or you really have jump through hoops and dig in to the OS to do so. Even then, who really knows for sure. There are some programs being written specifically for the purposes of privacy.
As for reinstalling your software, a suggestion might be to try and find portable versions of what you use and put them on a separate partition. Really simplifies things a lot and helps keep the OS clean from a lot of junk, and survives OS installs/reinstalls.
If you have a need for allowing the OS to automatically do things for you such as updates (including 3rd party drivers), push news/info to you directly, have a need for DX12, then you'd probably find 10 to your liking.
My advice for right now would be to hold off for a while because there are some hardware incompatibilities as far as drivers go. Might want to find out if all the hardware in your computers have drivers specifically written for 10. Incompatibilities might also be true for software, but not as likely.