Go to Support64 (or Support ) and run directly as an administrator. 5. Disable OneDrive Syncing
In the world of real-time strategy gaming, few titles command the same respect, longevity, and technical complexity as StarCraft II . Whether you’re a casual co-op commander, a ranked ladder warrior, or an esports professional, you’ve seen the familiar loading screen progress bar creep across the bottom of your display. Accompanying it are the simple, almost sterile words: starcraft 2 preparing game data
Right-click the OneDrive icon in your taskbar and select . Go to Support64 (or Support ) and run
If you are stuck on this screen or facing it every launch, several community-tested fixes can help: Whether you’re a casual co-op commander, a ranked
Until then, the next time you see that progress bar and the words “Preparing game data,” know that your computer is orchestrating a silent symphony: decompressing archives, building collision grids, syncing clocks, and warming up textures — all to deliver the crisp, responsive, beautifully balanced chaos that is StarCraft II .
The "Preparing game data" phase requires free space to decompress temporary swap files. If your system drive (C:) has less than 10 GB free, or your game drive has less than 5 GB free, the process will stall. Many players mistakenly think the game just needs space for an update—but the preparing phase itself needs scratch space.
