Right-click the first ISO file and select Mount . Windows will assign it a virtual drive letter (e.g., D: or E:).
Update your graphics drivers and ensure DirectX 9.0c is installed, as modern versions of Windows often deprecate older DirectX components required by FSX. Step-by-Step Installation Guide
To install using ISO files, you must mount the virtual discs and follow a sequential installation process. Since FSX was originally released in 2006, modern operating systems like Windows 10 and 11 require specific compatibility adjustments to ensure a successful setup. Installation Prerequisites How to install microsoft flight simulator x deluxe iso
Once the installation finishes, you will be prompted to enter your 25-character product key. Essential Post-Installation Steps System Requirements - Captain Sim
When the installer prompts for the second disc, unmount Disc 1 by right-clicking the virtual drive and selecting Eject . Then, Mount the Disc 2 ISO. Click "OK" in the installer to continue. Right-click the first ISO file and select Mount
Follow the on-screen prompts. It is highly recommended to install FSX to a root directory (e.g., C:\FSX ) rather than the default Program Files (x86) to avoid permission-related issues with future add-ons or mods.
Open the virtual drive in File Explorer and double-click setup.exe . If the installer does not start, right-click setup.exe and select Run as Administrator . Step-by-Step Installation Guide To install using ISO files,
Ensure you are logged into an account with administrator privileges.