Update on Battle.net broke installation

[BrunoKrugel]

Today we had an update in Battle.Net that broke the installation, if we try to reinstall we are unable to install again using the NonSteamLauncher, the Battle.net installation always fails with an error message "Another instance of Battle.net was found in the system, please remove it", but this show even in a clean SteamOS.

I am able to install and launch the game through Lutris, if I change the Runner to GE-Proton, maybe we need to change something in the install script from NonSteamLauncher?

Reference:

• Couldn’t update after 11.1, now can’t install
• BLZBNTAGT00000840 error on Linux after v. 11.0.7
• World of Warcraft doesn't update/install/download
• Unable to update World of Warcraft (retail), error blzbntagt00000840 leads to a spiral of uninstalling battle.net WINE bottle and no resolution
• Any linux gamers having issues today?

[moraroy]

@BrunoKrugel what proton allows it to run in lutris?

[moraroy]

@BrunoKrugel you try steams Proton 8.0.5?

[BrunoKrugel]

I tried with Proton 8.0.5 but still the same error.
In Lutris I was able to install, run and update with “ge-proton”.

[moraroy]

@BrunoKrugel I got it working with Steams Proton 8.0.5 , I also deleted 3 folders in the ~/compatdata/NonSteamLaunchers/pfx/drive_c/Program Data/* 3 batttlenet folders" I deleted those folders then re-ran Steams Proton 8.0.5 and it worked for me... but I had to tell the battle launcher "to re-download my games" even though they already existed, since they were already downloaded they just updated and I also had an update for the launcher. All my games worked then.

[seeroush]

@BrunoKrugel I got it working with Steams Proton 8.0.5 , I also deleted 3 folders in the ~/compatdata/NonSteamLaunchers/pfx/drive_c/Program Data/* 3 batttlenet folders" I deleted those folders then re-ran Steams Proton 8.0.5 and it worked for me... but I had to tell the battle launcher "to re-download my games" even though they already existed, since they were already downloaded they just updated and I also had an update for the launcher. All my games worked then.

This worked for me, thank you! I was stuck and there's a pretty lengthy Reddit thread about this very issue. I think the Program Data detail would be great to share. Here's the reddit thread, I linked to this issue so hopefully it'll get more eyes:

https://www.reddit.com/r/SteamDeck/comments/1i1orin/comment/m7qcxgq/

[moraroy]

@seeroush I think the real issue is that Battlenet sees the prefix as Windows 8.1 and they have now updated their requirements for Windows 11, this will probably need to be updated in the prefix for all of Proton. This is just my guess.