Again, I don't think it's a problem with Windows. The OP states the stick works in several other sims; if it were a Windows problem, it's unlikely it would work in those games either.
Also, the threads I link show that this has been discussed some 8 years ago, and specifically mention that it's not supported in this sim and there are/were no plans for a fix. I don't use the stick myself, but I get the impression reading that there is 'diminished' level of force feedback, so although it seems to work somewhat, several people who use it have said it doesn't work like it did in prior versions of OFF/WOFF. So, that also suggests it's not a problem within Windows; rather, that it worked at some point in the sim (c. 2015? or perhaps slightly earlier) but then at some point stopped working properly.
In this post on the thread linked by Becker01:
>LINK< catch said "the old sidewinder is not as good as it used to be in the latest WoFF versions. I think they changed the code or something and it's perhaps no longer supported?", and OBD responded that "MS no longer supports it either".
Doesn't seem like a Windows problem.