It is commonly known that every piece of software after removed from the computer could have left some invalid registries behind. But I was shocked to find out that the total number of invalid path registries left by Prepar3D v3.0 could have crazily accumulated to 34,423 entries.
Unbelievable but it is real. It took me nearly three hours to clean them up from my computer earlier this evening.
If you have updated to P3D v3.1 recently (no matter it was by patches or by re-installation), you’d better run a thorough system check. Maintaining a clean and error-free system as always is critical to keep the flight simulation, both FSX and P3D, to perform in best condition.