As with many, many others I have an unstable FSX:SE experience after build 1709 installed on my system. However, I've tried to make the best of it and - you know what - I've found a silver lining! I got tired of CTD and 'child window' issues, of missing menu dropdowns and erratic behaviour so, since I haven't done it properly for a few years now, I decided to do a forensic test of all my settings (not tweaks - just settings). I set a standard flight and then trialled slider combinations, I experimented with Affinity Mask settings, I tested the effect of autogen buildings and trees per cell and a few more besides. The result? I now have a sim rig which gives me better and crisper graphics than I've ever seen and a smoothness to my visuals that I hadn't achieved until now. (I know I should have done this before now but I was too busy flying )

No rights and wrongs in this - just sharing an unexpected positive from the 1709 debacle.

Rupert

I just upgraded to Win 7 from Win10.

very happy now.