Microsoft needs to create a version of Windows 10 for people who need to actually do work on their computers -- a version without all the built-in social-networking-oriented junk that's targeted at people who mostly use the computer for Facebook and similar. It also needs to work without Internet access -- and without sending who-knows-what information out on the Internet at those times when it
is connected. Updates should be scheduled, and not attack you when you're in the middle of something important.
If I spend 99% of my time offline, and only connect to specific websites to download or activate specific software for work or school, I don't need Windows changing everything in the background, mindlessly changing useful drivers to newer-but-nonfunctional drivers simply because they're newer.
And it would definitely be better to go back to the interface in Windows 7, or even XP, instead of the space-wasting default appearance of Windows 10 (or 8/8.1). If a program doesn't work correctly in Windows 7, you know where to go to fix it. With Windows 10 everything is somewhere else, and you have to either waste time looking for the new place or waste time doing an online search to figure out how to do what you already knew how to do in previous versions of Windows.
Right-clicking the Desktop doesn't give you the same options as it did before. Some programs expand to fill the entire screen with no way to quit, minimize or window them. For example, I mistakenly used Windows 8.1's "Reader" to open a pdf file, and I couldn't see any way to get rid of it. It had no "X" or "_" in the corner, it had no menu. None of the mysterious icons that sometimes appear when you hover your mouse over the right side of the screen seemed to apply to closing the program. "Surely they don't expect you to read this same pdf forever," I thought. But I never found any obvious way to close this unfamiliar "Reader" program from looking at the user interface. Eventually I tried the keyboard shortcut Alt-F4 to close "Reader" -- something I normally only do when programs crash (immediately before I try Ctrl-Alt-Delete and Task Manager). Alt-F4 worked, but it's ridiculous that there was no obvious way to close Reader !!
On all their game pages, GOG has this warning:
Please be advised that Windows 10 operating system will receive frequent hardware driver and software updates following its release; this may affect game compatibility.
That alone should tell you something.