They are ordered from the most common at the top, to the less frequently needed at the bottom. If you are receiving a specific error when attempting to install Diablo III example: BLZPTS , follow the support article for that specific error before trying these more general steps. Also, if you participated in the Diablo III beta, please make sure to uninstall the beta client before installing the retail version.
Install From an Administrator Account Be sure you are logged on an administrator account when installing the game. If the game is not installed on an administrator account, computer permissions can prevent the installation from completing.
Also, we cannot support the game on a non-administrator account. To find out which user accounts are marked as Administrator accounts, follow these instructions: Double-click the icon and it will bring up a list of users on your computer.
Find the user account that matches your user name and have a look in the group column; it may say administrator, power user, or user. If it says "administrator" then you should be fine. Right-click on the Installer listed as "application" and select Run as Administrator. If you notice your installation hanging at Updating Setup Files, or if you receive errors specific to Agent, try the following steps: Wait for at least one minute. If that does not resolve the issue, delete the C: The launcher will automatically rebuild this folder.
If you cannot locate this folder, try these steps: Click Start If you are in Classic View: If you are in Category View: This will bring up the Folder Options window. Click on the View tab. In the Advanced Settings section under Hidden files and folders, select Show hidden files, folders, and drives.
Try again to navigate to the proper folder: Unfortunately, many security programs are not game-friendly and will frequently perceive a game installation or update as a threat and shut it down.
Disabling or temporarily uninstalling these programs will often permit the Diablo III installation to complete successfully. However, be advised that some security programs will continue to partially run even when disabled. If you are uncomfortable troubleshooting your security programs yourself, contact technical support for the security program. We recommended running in Selective Startup mode when attempting installation, since background applications can interfere significantly with these operations.
You can find more information and detailed instructions for this mode on the Closing Background Applications page. If your disc is too damaged to work, you can download the game instead.
Depending on your version of Windows, you should be able to navigate to this service with one of the following methods: Be advised that some security programs such as AVG can potentially be turning this service off.
If the service becomes disabled again after you've switched it to automatic, you will need to configure your security program to stop disabling the service. Fix Hard Drive Errors and Fragmentation A few bad sectors on your hard drive or a high amount of data fragmentation can result in installation issues. To fix these, follow the instructions on our Running Scandisk and Defrag page. We recommend running memory scan utilities such as the Windows Memory Diagnostic.
Run the extended test suite option, as mild errors on your memory sticks will often not be uncovered with shorter scans. Remove Viruses and Spyware If all else fails, there may be malware on your computer that is interfering with the installation process.
To deal with this possibility, we recommend scanning your hard drive with game-friendly security programs such as Kaspersky. New and returning users may sign in Sign in.