: Access the Steam Library, right-click FSX: Steam Edition , select Properties , and go to the Betas tab. You can select specific older versions from the dropdown menu, and Steam will automatically download the required files.
To downgrade or revert your to a previous state, you can either use Steam's built-in "Betas" feature for version management or perform a clean reinstallation to restore the "vanilla" experience. Downgrading and Version Management Microsoft Flight Simulator X: Steam Edition Dow...
: If a specific build is not in the Beta list, you can use the Steam Console and SteamDB to manually download older "depots" using specific manifest IDs. Restoring to "Vanilla" Default : Access the Steam Library, right-click FSX: Steam
If your goal is to "downgrade" from a heavily modded or broken state back to the original clean version: Downgrading and Version Management : If a specific