Installation is very simple. Make sure your flight simulator is not running. Then unzip the downloaded setup file and run the setup program. This example shows Prepar3D v4.
After clicking “Next”, the License Agreement window is shown. Make sure you read and comply with the License Agreement before selecting “I Agree”.
You are now asked where you would like to install Altitude on your computer. You can decide to keep the default path as shown in the image below, or you can type in the preferred path or select “Browse…” to choose it, then click on “Next” to proceed with the installation.
The next windows allows you to select in which simulator you want to install the software, and the different components that you can choose to install.
You now are almost finished with the installation, after choosing the components and the pilot core you can click “Install” to proceed.
During the installation, you will see a progress bar showing the files being installed, like in the image below.
After the installation is “completed”, the following window will appears, just click “Next”.
Now you need to reboot your computer, you can choose the way in the following window and then click on “Finish”.
Once the computer is restarted, the installation is now finished.