I can't open the Blizzard App

Support Technical Support
1

I’ve been trying off and on since noon Mountain time, but I get this error every time:

Cannot launch Battle net.

Required application data could not be found.
Please check your application directory and try again.

(I’d post the screenshot I have of the dialogue box but there’s no option for that.)

Why can’t I access the Blizzard App and how do I fix it?

6 Likes
2

Hey, Nelstari!

Let’s try a completely fresh install of the Battle.net app.

  1. Press the Windows + R keys

  2. In the Run Box type %localappdata% and press OK

  3. Delete the Battle.net and Blizzard Entertainment folders

  4. Press the Windows + R keys

  5. In the Run Box type %temp% and press OK

  6. Delete any the Battle.net and Blizzard Entertainment folders that may be in there

  7. Press the Windows + R keys

  8. In the Run Box type %APPDATA% and press OK

  9. Delete any the Battle.net and Blizzard Entertainment folders that may be in there

  10. Press the Windows + R keys

  11. In the Run Box type %programdata% and press OK

  12. In the ProgramData folder delete the Battle.net and Blizzard Entertainment folders

  13. Reinstall the Application:

17 Likes
3

That worked! Thank you so much!!!

C/Program Files (x86)/Blizzard App MUST BE deleted in order for the installation to proceed. (I found that out the hard way. lol)

ETA: This is Nelstari, by the way. I didn’t realize it had changed my character information.

1 Like
4

Glad to hear that helped!

1 Like