: Delete the "Blizzard Entertainment" and "Battle.net" folders located in %APPDATA% , %LOCALAPPDATA% , and %TEMP% . Why This Happens (The "Story")
Yes, even though it’s "local" data preparation, the launcher phones home during verification. starcraft 2 preparing game data verified
Sometimes, the "StarCraft 2 preparing game data verified" error is caused by a bad sector on your hard drive or a corrupted registry entry. In this case, do not uninstall the game via Windows. Use or manually delete the folders, then: : Delete the "Blizzard Entertainment" and "Battle
If you experience long loading screens every game, the most effective hardware upgrade is moving the game installation to an SSD. This drastically reduces the time required to "Prepare Game Data." even though it’s "local" data preparation