I have never had to re-install the sim. I empty my community folder before update, make sure everything is current and updated on my pc, windows, ms store and nvidia drivers (drivers only) without Geforce Experience. After taking literally 2 days to download I had ctd,s every 15-20 min into flight. Reinstalled the previous nvidia driver 522.25 and the ctd,s stopped. Now here’s the part I don’t understand but it works for me. I put back my community folder, reinstalled the latest nvidia driver 526.86 again without Geforce Experience and although the sim takes awhile to load it runs beautifully, no ctd,s. I sincerely hope this helps, this sim is a love/hate relationship. Best to you.