VMware: IP address already assigned to another adapter

To resolve this issue, make the ghosted network adapter visible in the Device Manager and uninstall the ghosted network adapter from the registry:

1. Select Start > Run, type cmd.exe, and press Enter.


2. At the command prompt, run this command: "set devmgr_show_nonpresent_devices=1"


3. Enter Start DEVMGMT.MSC and press Enter to start Device Manager.


4. Select View > Show Hidden Devices.


5. Expand the Network Adapters tree (select the plus sign next to the Network adapters entry).


6. Right-click the dimmed network adapter, and then click Uninstall.


7. Close Device Manager.

Reference:
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1179