I’ve been struggling with this issue for a few weeks now.
One day out of the blue, Battle.net launcher asked for permissions to make changes to this PC. I granted it thinking it was just an update for one of the recent patches, and the chaos commenced.
First it started with BLZBNTAGT00000BB8 errors, then it graduated to “Your World of Warcraft Installation is damaged” when launching the game.
Steps I have taken to resolve this issue :
- Disable Antivirus (I don’t actually use one but I disabled Windows Defender just in case)
- Installed Malwarebytes to check for malware - none found - uninstalled it afterwards
- Ran the repair tool - I ended up in an endless loop of “whoops! looks like something broke”
- Checked to see if a proxy was enabled - there was none
- Created a secondary Admin account on my PC. Scan/Repair got stuck at 99% for over an hour before I gave up and switched back to my main profile.
- Upgrade to the beta version of the Battle.Net launcher (this was another temporary band-aid)
- Completely uninstalled battle.net launcher (5+ times total now, and I even found a post on another thread detailing how to clear alllllll the app data and cache. I even went so far as to delete the registry entry for Blizzard Entertainment).
- Completely uninstalled all Blizzard games + the launcher and deleted all app data & registry files I could find
- Performed a clean install for both the launcher and World of Warcraft not once or twice but 5 times now.
- DNS has been changed
- Internet connection is pristine - hard wired to my router.
- Restarted internet before re-installing the game (again, the game works for a limited amount of time before randomly corrupting)
- BNet launcher is installed on C drive - game is installed on a separate internal SSD. I cannot install the game onto my C drive as there simply isn’t enough space. It’s a small NVMe and WoW would place the drive beyond capacity.
Every step I have taken was a band-aid. WoW would work for approximately 4-6 hours, then like clockwork the battle.net launcher would request permission to make changes and it would proceed to cycle back into the scan/repair loop.
On my latest clean re-install of the launcher and WoW, the game worked perfectly fine for a few hours. I logged off and did other things on my PC for about 2-3 hours and when i went to launch the game again, I received the “Your World of Warcraft installation is damaged” error, to which now the launcher keeps failing the repair at about 60%.
The only variable left is my add-ons, but they are all add-ons I’ve been using for years and have never had issues with.
I don’t know what else to do here.