You didn't answer me, so I'll give you another chance. You must've missed my question last time. Which VPN were you using which stopped working after a windows update?
Tinc gets broken by Windows updates every once in a while. The problem is that the update sometimes renames the network connections and Tinc needs the connection to have a specific name to work.
That's the one I personally ran into several times now.
Given that I literally said I personally encountered this problem: Yes, it does. It's mostly just an annoyance that goes straight onto the "Windows Update jank" pile but I have wasted quite a bit of time helping people deal with connectivity issues that could down to "tinc_vpn" getting automatically renamed to "Network Connection 7".