Managed Computer AD DS

[Liam]

Im a little confused.

 

As an extra layer of security i am trying to configure the network with prestaged/managed computers.

 

At present i have over 100 machines already listed but there are about 350 missing. I am wondering how they got there if i didn't enter ether GUID or mac.

 

Any help would be appreciated

 

I would also like to achieve this for remaining clients but i am not aware of doing this without manually entering the GUID

 

thanks