I only hope that MS doesn't break Office 2010 with one of their Windows 10 updates. I'm sure that it would be possible to code into the OS, but I can also imagine the mess they would be in, legally if they tried something like that.
I'm already considering turning off feature updates in Windows 10.
Of course, with the end of all support for Office 2010 later this year, there could be security issues. But being a personal (home) user, with good internet security, I probably don't need to worry about that.