"The powershell collector requires at least one All Computers credential."

I am using the MAP toolkit 8.5 and getting the following error when using a few of the collectors.  Most work fine with a domain admin, but some don't..

"The powershell collector requires at least one All Computers credential."

Can anyone shed some light on what credential I need?  Are we talking Active Directory All Workstations?  Computers?  I don't see anything called All Computers.  

Thanks in advance.