Thanks, that is good to know.

But if I change it, will it affect anything, do those group name exist somewhere on the server, like registry etc. I checked they are not in security- login.

Because we often have the situations like this - to rename servers, and leave the old computer names in windows group look unclean and confusing.

But I wonder if I change them by replace the string of old computer name with new computer name in the windows group name, will it affect anything?

Thanks