To convert a physical server to a virtual machine, VMware® vCenter Converter Standalone must be installed.
After installation, launch the application and click "Convert machine".
Specify the type of machine to be converted: "Powered on", "This local machine":
Specify the destination type "VMware Workstation or other VMware virtual machine":
Unplug all network adapters by removing the checkmark in the "Connect at power-on" column to avoid network problems:
The resulting machine should be opened with VMware Workstation Pro and exported to OVF (see article)