Diablo 3 stuck at updating blizzard launcher
You may remove the game files using the Uninstall Program features in Windows (Add/Remove programs if you are on Windows XP).After uninstalling the game, browse through your hard drive and ensure that the following folders have been deleted: C:\Program Files\Diablo III Beta or if you installed to another location, make sure the game folder is deleted.
If you try running the Diablo III file and nothing appears to be happening, check to see if the Windows Service for Secondary Logon is enabled. This service being disabled may also cause the system to appear to hang during the "Updating Setup Files" portion when run.As has been mentioned, launching the Diablo 3 downloader and directing it to the same folder as before will allow it to download the installer files again.Please make sure to leave the downloader alone as it works.We've recently become aware that playing Diablo III with the latest Catalyst 12.4 drivers for ATI cards may cause some visual artifacts for specific hardware configurations.This issue affects users of ATI Radeon HD 2400, 2600, 2900, 3400, 36 graphics cards under Windows Vista and Windows 7.
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We'll keep this post updated throughout the next couple of days with the latest problems and info on how to fix them.