Yep, I think that's the way to go.
Going to back up some settings and export some files, then it's clean slate time.
I would most likely still tell someone else to clean-install.
For myself, a relentless obsession for tuning my Win 10 installation and making a variety of software work together seemed worth the trouble.
I think it can be a lot of trouble. But what one has may also have been a lot of painstaking trouble to create over many months.
Today, I feel victorious. Also, the new Build 1703 does something I hadn't noticed before in Win 10. Frankly, I thought the default size of a Hiberfil.sys would be 16GB for 16GB of RAM. The preferred tweak to this, worrying too much about SSD writes, is to set it at 50% which is the minimum. But Win 10 gives you a "Full" hyberfil.sys of 40% of RAM, with a "reduced" setting of only 20%. The former supports hibernate, sleep and fast-startup; the latter only supports fast-startup.
So . . . I'm still gloating after this . . . I've got dual-boot Win7/Win10. I've identified an anomaly in Win 10 startup related to non-standard, non-NTFS volumes on the boot-system disk, but it so far seems benign. [To get rid of it, I only need to abjure using PrimoCache caching of my HDD to my 960 Pro caching volume. There seems to be a small but growing knot of people over at the Romex Forums who have a common boot-time message about "Diagnosing, scanning, repairing" a GUID.
If the system boots, there aren't any red-bang events in the logs related to start-time and storage, and the caching works flawlessly, well -- benign seems to be the right word.
A few more things to do with this system, and I think I'll feel really good. Very good indeed.
==== AN UPDATE TO THIS POST ========
The last anomaly I could discover has disappeared. This was the symptom where even in properly working dual-boot, Win 10 throws a "Diagnosing, scanning, repairing {GUID} volume . . ." before reaching the pre-logon display. Repairing the Samsung driver through Control-Panel->Programs and Features, then uninstalling/reinstalling the Magician 5.0 software -- seemed to resolve it all. This may work for some people with some hardware and some OS installs. But easy enough to do as a possible fix.