Error code

Blizzard BLZBNTAGT000008FC

BLIZZARDBLZBNTAGT000008FC
Game/Platform Error· An error code shown by a game or gaming platform/launcher.

What it means

There is a conflict with one or more programs or services on the system..

How to fix it

  1. Restart the computer to clear background processes.
  2. Update or temporarily disable security software.
  3. Reset the WMI repository (winmgmt /resetrepository from an elevated prompt).
  4. Remove leftover Blizzard files from %ProgramData%\Blizzard Entertainment.
  5. Uninstall and reinstall the Battle.net app.

Not affiliated with Blizzard. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.