I would strongly recommend against it. Then again, I wouldn't use Win10 either. Personally I use non-Windows systems for financial or other critical online work. Smaller attack surface and far fewer active exploits in the wild for Mac and Linux.
I love Win7, and will not voluntarily switch to Win10 except for compatibility testing of my software. When I think Win7 have at last run its course, I'll be using Mac and Linux systems for anything that doesn't absolutely require Windows. Sad, but true.
[[When I think Win7 have at last run its course, I’ll be using Mac and Linux systems for anything that doesn’t absolutely require Windows. Sad, but true.]]
Anothe3r solution might be to link two computers, one, windows 7, without any access to internet, to another, windows 10, that does- that way you could transfer any files you need that were done on the 7 comp to the 10 computer-
There must be a solution- perhaps using VM- and deleting the session (doing a rollback) after you go offline- so that credit card numbers, banking info, isn’t kept in the VM files?-