Prepar3D how to FIX a Corrupt User Interface (UI)

Опубликовано: 14 Май 2026
на канале: Poppet
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A Tutorial to show you how to repair a Corrupt User Interface (UI) Prepar3D v2 \ v3 \ v4

Click SHOW MORE for Additional Information:

These are the same steps for Prepar3D v2 \ v3 and v4.

Deleting the UISettings.xml file will Not effect any of your settings or 3rd party software (Add On's)

This file will generate again as default when you launch Prepar3D

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Your UISettings.xml file can be found at the location below.

Local Disk (C:) ► Users ► You ► AppData ► Roaming ► Lockheed Martin ► Prepar3D - UISettings.xml


For Windows 7, 8 and 10 users there is a quick way of finding the UISettings.xml file

Copy the TEX below and Paste it into your windows search bar, This will bring you directly to the correct location.

Use your version of Prepar3D.........


%APPDATA%\Lockheed Martin\Prepar3D v4

%APPDATA%\Lockheed Martin\Prepar3D v3

%APPDATA%\Lockheed Martin\Prepar3D v2


Delete this file below and then launch Prepar3D and test

Click here for Image ---) https://farm5.staticflickr.com/4536/3...
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Another way of finding this location is to Insure you have correct settings applied in File Explorer

Type "Folder Options" Into the windows search bar and click on it.

Click "View"

Tick the Circle for "Show hidden files, folders and drives" and click Apply

Click here for an Image ---) https://c1.staticflickr.com/3/2910/33...

Then follow the path to your UISettings.xml file

Local Disk (C:) ► Users ► You ► AppData ► Roaming ► Lockheed Martin ► Prepar3D - UISettings.xml