I still use Win7 PRO 64-bit as main OS. I am using JVT16 as v6.1.0.1203. I have no plans to upgrade my platform to Win8, or Win10, and certainly not to upcoming Win11. What may force a change is if I purchase a new PC. But, I don't like Telemetry hassles with MS OS versions above Win7. And, Win7 runs the most recent games, plus legacy Office Apps that I like. McAfee Total Protection takes enough care of my security needs - but see the discussion on JVT getting quarantined by a recent McAfee update. I'm OK with being in the <5% of current jv 16 users using Win7.