The Blizzard Desktop Application requires access to Windows Management Instrumentation to work correctly. If this has become corrupted or disabled, you can follow the steps below to reset it:

  1. Press Windows+Q and type cmd into the search bar that pops up.
  2. Right-click on Command Prompt and select Run as Administrator
  3. Type net stop winmgmt into the command prompt and press enter.
  4. When prompted if you wish to continue, type Y and press enter.
  5. Type winmgmt /resetrepository into the command prompt and press enter.
  6. Restart your computer to pick up the changes