It's hard not to recommend Reaper, considering your situation. Either that, or get on the subscription train with Adobe Audition. Or continue to use Win7 until your computer crumbles into dust and you're forced to upgrade.
Yes as Tadpui pointed out, there is no pressing need to upgrade and audio workstation that's doing what you want it to! Getting an inexpensive laptop to use for the internet would let you try Windows 10 as well as keep your Windows 7 machine as a dedicated recording machine. I have several computers that are now 'locked in time' for recording purposes, one running Windows 2000 Professional, and two Windows XP desktops as backups for the Win2000 machine. A few months ago I installed my old Cool Edit Pro 2.1 onto my brother's Windows 10 computer and it seems to be working ok for him, but then he only does a little voice recording. Regarding MS really pushing Windows 10, I just read a couple of days ago that they are changing it to be a 'recommended' update, so if you have your automatic updates set to receive recommended updates the same as important updates Windows 10 might get downloaded and installed automatically. Hi, I installed both 'Cool Edit Pro 2.1' and 'Cool Edit 2000' – in a 'Windows 10' * 64-bit PC (aging, though: 2006!) + a 'Windows 10' 32-bit one: with no problem at all.