I dont know what could have screwed up your P3D, have you uninstalled a plane or some scenery recently ? if so maybe that screwed it up.
As for doing a reinstall I found its best not to uninstall P3D through Control Panel/Programs and Features.
Instead run the P3D installer and as its already installed it will give you the option to uninstall, that seems to clean everything out properly.
Beans, as to the reinstall, that's the way I tried to do it for the v1.4 update, but the installer couldn't find v1.3. Even after pointing it to it. Then, it wouldn't install, because it said I still had v1.3 installed!!?? I had to manually remove EVERY item in the registry, which included individual GUI's for EVERY SINGLE individual item in the scenery library. Took me almost a week. I would retry installing every so often, and would still get the same error. It would not install until the very last item was removed. I do not know which item was the magic one, because I would start at different places in the thread each evening. But, after the last item was removed, and I did one more search, finding no more, then I tried the install routine again, and it installed! No errors, no questions asked!
Now, as to my current problem. Before the latest update, everything was there, and working. After doing some more investigating, it turns out I did not lose as much as I thought. What I lost is almost all my add-on aircraft, including AI. This is from BOTH V1.4 and V2.2. A lot of scenery is also missing. ALL the folders are still there, for everything, but the contents are gone. Some of the add-ons are still there, but others by the same authors are missing. Not even all of the default stuff is still there, but most of it is. However, the sim runs fine. I did a short flight in V2.2 after my original post, in the Alabeo Cessna 195, Ant's T-28A, and SimSkunkWorks F-84 Demo. However, I had none of the other aircraft from those editors. Even though I own all of them. And, I had no VC in Ant's T-28. The thing is, with each of the missing aircraft, ALL of the stuff in their support folders in the main P3D folder is gone also. Manuals, paintkits, everything. Flightplans, you name it. Even their instruments are missing from the gauges folder. It's as if Lockheed Martin put in some kind of Trojan horse that eliminated anything that didn't have a license to be installed
to this sim is eliminated. As an example, Just Flights P-38 is there, but none of their other aircraft. Since there is no "last edited" date on any folder, except the last time I installed something, like a new texture or whatever, I can't tell when this happened. All I know for sure is that a couple weeks ago, everything was fine.
Since all of the folders are still there, I am going to try to reinstall most of them. As for the possibility of something I removed/uninstalled causing it, I haven't uninstalled anything in months. So...
Hopefully, someone will read this who might have an idea. Till then...