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I have a machine that has wifi and ethernet. I have wifi active, and am not using ethernet. My Windows firewall shows two active networks, one is the wifi network I connect to, and the other is "Unidentified network". What is this unidentified network? I can't seem to be able to get rid of it because I can't find where it is even defined. How can you detect this and know whether this is just something appropriate or possibly a security problem? I am on Windows 7 64bit.

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Have you installed a virtualisation product such as VMware Workstation/Player or VirtualBox? These create virtual network adapters which are usually classified as "Unidentified".

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Yes, I have the VMWare PLayer on my machine. – Rhubarb May 10 '10 at 13:05
This site has a little information on this, and a fix if this is causing problems for you: aspoc.net/archives/2008/10/30/… – Graeme Donaldson May 12 '10 at 10:08
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Open Network and Sharing Center, and click Change Adapter Settings on the left side. If one adapter says "VMware ... Unidentified Network", then it's probably a pass-through adapter for VMware's networking capabilities. I have one called "VirtualBox Host-Only Network" on my computer since I have VirtualBox installed.

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