Troubleshooting problems with the Battle.net friends list
A guide for diagnosing and repairing problems with physical hard drives.
Troubleshooting for problems installing or patching the Starcraft II game client
Follow these steps to troubleshoot problems with your low-speed or wireless internet connection.
Many common hard drive or OS problems on a Mac can be resolved by running Repair Disk.
Out-of-date drivers and operating systems can cause a variety of issues, and are one of the first things to check when a game is having problems.
Problems with patching may be resolved by disabling the read-only setting on system folders.
Damaged windows system files can cause a variety of issues playing games, and should be repaired to prevent problems.
Decryption key is invalid or missing. Please uninstall and reinstall.
Decryption key is invalid or missing. Please uninstall and reinstall.