Corrupted temporary files in the launcher can cause the "Verified" loop. Close Battle.net completely. Press Win + R , type %ProgramData% , and hit Enter. Delete the and Blizzard Entertainment folders. Repeat this for %AppData% and %LocalAppData% . Restart the launcher and let it rebuild the data. 5. Check OneDrive Interference
is a persistent bug often linked to or regional synchronization issues. Recommended Fixes starcraft 2 preparing game data verified
Here is a technical nuance that 99% of guides miss. The "verifying" process requires massive contiguous virtual memory. If your Windows Page File is set to "System Managed," but your C: drive is nearly full, Windows cannot allocate the RAM-like space needed to unpack the CASC files. Corrupted temporary files in the launcher can cause
Press again, type %LOCALAPPDATA% , and delete the Bnet and Blizzard folders. Delete the and Blizzard Entertainment folders
Select , then click Modify Install again in the pop-up menu.
If the game still loops after executing these steps, tell me: Preparing game data - Technical Support - SC2 Forums