How to resolve this problem when downloading an update

Something went wrong while trying to launch the game. Please make sure it's installed and updated, then try again.

The Blizzard Update Agent could not install in the specified folder location.

Troubleshooting performance problems in Modern Warfare II.

Troubleshooting for Partially Installed Errors when trying to access certain game modes.

How to resolve this issue when installing or updating a game

Troubleshooting steps for "Waiting on Another Installation or Update" error when trying to update a game.

Information on error BLZBNTAGT0000083F

Troubleshooting steps for this error when installing Blizzard games

Information on error message BLZBNTBGS8000001C.