Locate and delete the and Battle.net folders. Restart the Battle.net Desktop App. 4. Direct Launch Workaround If the loop continues but you just want to play:
This article provides a deep dive into the causes of the "Preparing Game Data" loop, followed by a surgical step-by-step guide to restoring your connection. starcraft 2 preparing game data link
Corrupted cache files can cause the "Preparing game data" loop to persist. Press , type %ProgramData% , and hit Enter. Locate and delete the and Battle