Renaming computer via command prompt

[maylortaylor]

I am the system admin for a small business (120 employees) and I am looking at an easy way to rename all of the computers in the office to a more uniform naming convention.

I have tried playing with the "netdom renamecomputer" line in command prompt but that doesn't seem to work at all. Possibly because are not on a Group Policy. We set our computers up using a WORKGROUP and then have our employees connect to work servers using Remote Desktop connections.

Is there a Powershell tool or a program that i can download to help me rename all the computers in our network?

EDIT: we have mostly Win7 machines but recently we have added about 20 Win8 machines (in case that matters)

[maylortaylor]

Found the answer somewhere else.

WMIC ComputerSystem where Name=COMPUTERNAME call Rename Name=NewName

If the computer name has dashes or other special characters you need to quote the computer name

WMIC ComputerSystem where Name="COMPUTER-NAME" call Rename Name=NewName