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Use the steps below to troubleshoot installation issues for Blizzard games.
Types of issues Blizzard Customer Support can help you with on Activision games
Restart the Battle.net desktop app to clear temporary issues that may cause this error.
How to resolve issues with slow patch downloads.
Troubleshooting steps for Overwatch crashing issues
Troubleshooting steps for issues installing the PTR client
A permissions issue is preventing Battle.net desktop app from renaming a file during an update.
Troubleshooting your security programs can resolve issues preventing you from installing or using Blizzard software.
What to do if you are seeing an error after starting the game