Recovering Managed Products Removed From the Product Directory

Restart the Trend Micro Control Manager service on the managed product server. For more information, see Stopping and Restarting Control Manager Services.
Wait for the Agent to re-register itself: By default, the older Control Manager agents verify their connection to the server every eight (8) hours. If the agent detects that its record has been deleted, it will re-register itself automatically.
Manually re-register to Control Manager: MCP agents do not re-register automatically and need to be manually re-registered to the Control Manager server.

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