Corrupted temporary files can cause the "Preparing game data" step to hang indefinitely. Preparing game data - Technical Support - SC2 Forums
In the Battle.net launcher, click the next to the Play button. Switch your region (e.g., from Europe to Americas ). starcraft 2 preparing game data verified
The "Preparing Game Data" error in StarCraft II usually occurs due to language pack mismatches corrupted cache files , or background syncing services like Blizzard Forums Primary Fixes Synchronize Language Settings : This is the most common fix. Battle.net Desktop App Select StarCraft II, click the Cogwheel icon (next to the Play button), and choose Game Settings Corrupted temporary files can cause the "Preparing game