Starcraft 2 updating error repair tool failed when validating user through authentication service

To do that, follow these instructions: It has been reported that some users are getting fatal error that crashes Starcraft 2 every time they start a game.Game runs great for 30 seconds and then crashes to desktop.Users have reported BLZBNTAGT0000096A error, and in order to fix it you need to go to C: Program Data folder and delete and Blizzard Entertainment folders from it.Before deleting these folders you can try disabling the all non-Microsoft services from the Startup.To fix this issue you need to start the game and wait for the game to load properly, press Alt Tab to switch back to Windows and in the firewall popup message allow Starcraft 2 to bypass your firewall.

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All that you have to do is to run the game in compatibility mode: Although this is a simple solution, it has been confirmed by users that it fixes the crashes for some of them.

If this doesn’t help, you might want to temporarily disable your antivirus and your firewall.

Sometimes Starcraft 2 has issues with fullscreen mode, so let’s try to launch the game in windowed mode by default.

This tool will repair most computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance.

Quickly fix PC issues and prevent others from happening with this software: Besides improved performance, using 32-bit client also fixes error 0xc0000142 for some players.

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