You will typically encounter this message in three specific environments:

The easiest way to stop this message is to remove the device that is trying to use the serial port. the virtual machine. VM > Settings (or right-click the VM and select

If you actually need to use a serial port and the error says "no corresponding device available on the host," try these steps:

Depending on your specific VMware product, use the following steps to resolve or suppress the warning: For VMware Workstation Users: Disable Virtual Printing Globally: This is the most common fix. Go to Preferences and uncheck the box for "Enable virtual printers" Modify Individual VM Settings:

Troubleshooting VMware: "Virtual device serial0 will start disconnected"

: The VM is set to connect to a physical COM port on your host machine that does not exist or is currently being used by another application.