Question
How do I purge or clean up old computers that have not communicated with the Deployment Server for x number of days?

Answer
Use the Tools > Options menu in the Deployment Server console.  Goto the Global tab.  There are two options that are selectable at the top of this screen:

• Delete history entries older than x days
• Remove inactive computers after x days.

Fill in the amount of days desired to wait before the inactive computer is removed from the database and choose OK.

Note:  If there a is a large ammount of history and clients in the database, enabling this option may cause the console to become unresponsive for a short period of time.