Thanks a million! Seems to have worked for me. I have had the Xbox app installed for a long time on my PC. But launching it just now, clicking on the MSFS icon to bring it to the foreground, then launching the MS Store app on a Win10 Pro PC, clicking on “Downloads and Updates” in the 3-dot menu … in the upper right, then “Get Updates” caused MSFS to update in the Microsoft Store and it showed that I was downloading the 461 Mb 1.18.15.0 hotfix. Launching the sim, though, it seems to hang now on “Checking for Updates…,” so I will kill it, reboot, and see if I end up with a smooth launch of 1.18.15.0 and update post with results. Update: Before I could exit sim, Checking for Updates finally completed and everything’s been snappy and smooth after that. No CTD’s! Hurray! Did not remove My Simple Aircraft or the H135 Airbus Heli v1.4.1 from my Community Folder.