I've worked on this machine with win7 ultimate sp1 with all the updates, on that OS i've noted a taskbar bug too, just like in win10, with hide taskbar option active, however with different symptoms, the taskbar become stuck, it refused to auto-hide, but his "always on top" feature never failed, just auto-hide stop working, i've experienced that bug even on a different system with WinXP long long time ago.
@darkhell666, It's a bug introduced by the repetitive update process from a build to a new one?: well, it's a possibility, in my experience, these upgrades tends to create some strange bugs, but i don't know, this is a very specific bug and the fact that is still there even after several updates makes me doubt about this possibility, i will do a clean install only when microsoft release the "consumer ready" redstone build, not before that. It very well could be something that is being "carried overed" I wait for RTM release, clean install, by that I mean format partition, then install RTM.
They would just upgrade my installation to RTM through WU, and as an average Joe I would no longer be running the pre-RTM build. But if you recall, the original question was about whether it's safe to continue running one of those pre-RTM builds indefinitely. To do that you'd have to go out of your way to prevent WU upgrading the OS to RTM, and that's not something average Joe is going to do. And face it, Microsoft isn't going to care about the few people who do. The difference is that those updates are applied to the current installation (see "wmic.exe qfe"), and that an upgrade (such as a new insider build release) is a full OS replacement. The difference is very much real, even though the UI tries to blur the lines.
I recall very well what was asked. There was no reference to safety. And even if there was, safety is personal not absolute, it depends on personal skill and and on programs used. XP is still perfectly safe, if used correctly. Should we be worried for a system released yesterday and not updated for few months?
What was leading to our particular argument was me stating that pre-RTM builds wouldn't be supported (i.e. safe to run), and you questioning that statement. There. Anyway, I've made all my points. You'll just have to wait for the first post-RTM update (not upgrade) to be released to see who's right.
that or swap out the nvidia for another high end card....it could be a issue with that specific card.
I would wait, format partition, download/install the Anniversary Update first, see if that fixes it, then ...