Removing Team Viewer and Freeing Up Remote Allocation Space

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I may not be using the correct terminology, which may confuse this question.  I apologize.

We recently got a Team Viewer account that allows me to control up to 200 remote devices.  We installed Team Viewer with unattended remote access on a fleet of laptops that have been deployed to staff.  We have since learned that the laptops are defective and must be returned.

I need to make sure that I am properly removing Team Viewer so the "seat" can be freed up for a new laptop.  Is it just a matter of removing Team Viewer from the remote machine via the Windows control panel and then deleting the entry from the "My Computers" list on my own Team Viewer's Computers and Contacts list?

Also, does this have to be done on each machine individually, or is there a way to remove and decommission more than one at a time?

Dave Kong