Diablo 3 an unexpected error occurred while updating required files

1# ATI 1.24 Catalyst Visual Effects Fix Download and install the latest Catalyst 12.4a driver hotfix if you experience any graphics issues with your ATI card. While you shouldn’t experience any compatibility issues with Diablo 3, running Diablo 3 Tools in Compatibility Mode (XP SP3) may help when all else fails.

15# Error 108 Similar to “An unexpected decryption error occurred”, the error 108 can be caused by corrupted installation files.Do not close the downloader early, let it finish and start installer itself.To fix this issue, run the downloader again and point it to the same saved location so that it may scan and download the missing files.16# Error 0 You will receive this error when the service is undergoing maintenance, so try again later. Launch days are going to be hectic for Diablo fans; only solution to this error is ‘try again later’.18# Error 24000 You may run into this error while attempting to run the game after logging in.

Blizzard is working to resolve it as quickly as possible. 19# Error 3004, 3006, 3007, or 300008 Try these suggestions to resolve these error codes: 20# Error 315300 If you have typed correct account info, make sure there are no additional spaces that were added before or after your email address.

9# Tome Error If you receive this error while installation, there is probably something wrong with the installation files.

Restart Diablo 3 downloader and let it finish; it should start installer itself.

11# Diablo 3 Error 3003 If you can’t get the game to switch to your location automatically when you log in, just manually enter your location. 13# Diablo 3 Error 37 It happens when there are too many players trying to log-in; more players than Blizzard servers can handle at time.

Wait for a while and try again, it should be fixed.

If you play in Europe, change the patch_url accordingly and follow the steps under "Reverting the client to the correct version". Open the .file on Word Pad.(This file may be hidden and please, do not delete this file) 3. Now go in the folder: Win 7/8/Vista C:\Program Data\Windows XP C:\Document and settings\All Users\Application Data\Battle.net(Program Data and Application Data are hidden folders.) 6. - Now, if the issue was the launcher not patching the Diablo III client because it was using a different patch_url, your client should be patched and you should be good to go. Delete all files named d3-update-10235 in the Data_D3 folder.