Turn off Windows Defender or your antivirus during the install to prevent it from deleting the "crack" files.
This is where you put mods. You can find it by enabling "Developer Mode" in game options, then going to Tools > Virtual File System > Package Folders .
When you first launch the game, it will ask for a path to download/place game data.
Avoid long file paths or folders with non-English characters (e.g., C:\Games\MSFS is better than a deep subfolder). 📂 Managing Your Files
Only download from the official FitGirl Repacks site to avoid malware found on "copycat" sites.
💡 If the installer gets stuck, try increasing your Windows Page File size or installing in Safe Mode.