And, BTW, time is not an excuse.. there are plenty of tools/examples/UDFs here on KORG to automate the process. 
There's a UDF that gets the names of every computer - write these to a file. There's a UDF to create AD Groups and populate them. There's an example that reads a list of computers and uses PSEXEC (or the Kix WMIRemoteExec UDF) to define group settings using NET LOCALGROUP.
Thus, if you used the same admin account at all clients, you could create the group, add your account, and push that group into all local Administrators groups with a single script. I used to do this as part of client on-boarding, along with a bunch of other things that made my administration tasks easier for me and safer for the client.
Glenn
_________________________
Actually I
am a Rocket Scientist!
