Hi,
my intention was to clean up Airplanes directory, because there are a number of aircrafts, I will for sure, never fly. To do this, I took the aircrafts directories and moved it to an so called Backup directory. At the next start of P3D, I noticed that P3D is configuring anything. This unknown configuring process took approx. 10 minutes until P3D loaded again. Later, I detected that all removed aircraft have been restored by P3D itself, again. I would like to know, whether this behaviour is intended and why. I personally prefer to have only a few aircraft in the Airlines directory.
Thank you
Bruno

Hi Mike,
NO; definitely no Backup Software is active on my machine. As an example; I DELETED the default Piper_J3Cub completely, with its directory. After starting P3D again, a window opens, reading in its title "P3D" and below "Please wait while Windows configures P3D", and again below n "Gathering required information" . (I do not know, how to attach a picture). After several minutes (approx. 10) , P3D starts normally. Looking later into the Airplanes directory; tataaahh; Piper_J3Cub is back again.
Bruno

After deleting any of the default AC's; P3D seems indeed to run a kind of setup again. I don't try anything again, because, I encoutered besides the long lasting, "new setup", an additional, real problem too. I do not know, whether it is linked to removal of default AC', or not, but I have twice removed AC's and have lost TWICE "all Autogen buildings" in scenery; though the slider is completely to the right. Only a new installation of P3D brought Autogen buildings back.
To be honest, I was hopping to get any advise from developers on my question referring to default AC's.

Please don't misunderstand me. My very last statement was indeed very misunderstnading. I need to say that, english is not my native language. To ask again clearly. Have you actually deleted i.e removed completey, any of the P3D default aircraft ? When starting P3D the next time; did it start immediately as usual ? Did the before deleted aircraft definitely not appear again ?
Thank you for your patience.

Hi Michael,
thank you very much again. I understand, the automatic restore of deleted AC's, is indeed related to the installation of P3D on my machine and nothing else. I will take your advises and check it.
Bruno

YESSS; thank you very much; this was the solution ! I deleted the original shorcut and created a new one, linked to Prepar3D.exe, and I can now remove default aircraft, without invoking the "automatic restore" function. I need to say, the issue was not vital, but a bit irritating.
Thank you again
Bruno

Terrific TIP ... Thanks a million