How do I block access to the Hub for other computers on the network?

Is there any way for me to prevent other computers on my network from being able to modify the files within the WDTV Live Hub Folder on the network, and have just my personal PC able to access and/or modify the files on there?

I’m using Windows 7, as are the other PC’s on the network.

Many thanks if someone could help me with this.

Well, you can restrict the access for the others computers, just change the workgroup where the WD TV Hub is located, and then password protect this workgroup.

Doing so, Only the computer(s) that are in the same workgroup will be able to access the WD TV Hub.