Disk Diagnostic: Configure custom alert text

This policy setting substitutes custom alert text in the disk diagnostic message shown to users when a disk reports a S. M. A. R. T. fault. If you enable this policy setting Windows displays custom alert text in the disk diagnostic message. The custom text may not exceed 512 characters. If you disable or do not configure this policy setting Windows displays the default alert text in the disk diagnostic message. No reboots or service restarts are required for this policy setting to take effect: changes take effect immediately. This policy setting only takes effect if the Disk Diagnostic scenario policy setting is enabled or not configured and the Diagnostic Policy Service (DPS) is in the running state. When the service is stopped or disabled diagnostic scenarios are not executed. The DPS can be configured with the Services snap-in to the Microsoft Management Console. Note: For Windows Server systems this policy setting applies only if the Desktop Experience optional component is installed and the Remote Desktop Services role is not installed.

Additional Information

  1. Registry path is:

    HKEY_LOCAL_MACHINE -> SOFTWARE -> Policies -> Microsoft -> Windows -> WDI -> {29689E29-2CE9-4751-B4FC-8EFF5066E3FD} # DfdAlertTextOverride

  2. The Administrative Template path is:

    System -> Troubleshooting and Diagnostics -> Disk Diagnostic


* Making mistakes while changing registry values can affect your system adversely. We recommend you to create a System Restore point before making registry manipulation. If you're new to Registry Editor, read this beginner's guide.
** To locate the registry and administrative template path, checkout beginner's guide.
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