Virtual Device Serial0 Will Start Disconnected 'link' Official

Starting with VMware Fusion 13.5 and Workstation 17.5 , VMware officially retired , a legacy technology that mapped printers via a virtual serial port (serial0). Because the software no longer supports the "thinprint" file type, it flags it as an invalid value and tells you the device will start disconnected.

Which are you using? (vSphere ESXi, Workstation, or Fusion?) virtual device serial0 will start disconnected

Navigate to your VM's folder on your hard drive and locate the Open it with a text editor like Search for lines starting with If you see serial0.fileType = "thinprint" , you can safely delete all lines or change serial0.present the file and try powering on again. Method 3: Fixing Real Serial Connections If you actually Starting with VMware Fusion 13

The serial0 part of the message indicates a specific type of interface—a serial port. In Cisco's naming convention, interfaces are identified by their type and number. serial0 (or Serial0/0 ) is a standard notation for the first serial interface on a router. Serial interfaces are crucial for WAN (Wide Area Network) connections. (vSphere ESXi, Workstation, or Fusion

The VM might be configured to connect to a physical serial port (COM1, etc.) on the host that doesn't exist or is currently being used by another application.

You should fix this if:

Depending on whether you actually need the serial port, use one of the following methods to resolve the message.