Troubleshooting issues with your game settings changing back to default when you log back in to the game

The video cards supported for use with Cold War and Modern Warfare

Troubleshooting steps for performance-related problems.

Antivirus software scans a computer's memory and storage to identify and eliminate viruses.

Troubleshooting steps for performance problems

What to do when you suffer input lag in-game

Performing a scan of your computer's physical memory can help identify possible errors.

A guide for diagnosing and repairing problems with physical hard drives.