george sibbald (3/5/2013)
these groups are used to manage security outside of SQL, so I cannot see a reason they cannot be renamed like any other windows group, but I have never tried it so would not like to definitely say yea or nay.
Thank you, understandable.
I can leave as they are, but since we do server renaming quite often whenever we do some upgrade, so would like to keep servers clean.
But I got most of answers for this question is they are optional, and it seems most DBA leave them as they are, but I can never find somewhere online in microsoft site said if it is OK to change them and it won't affect anything.
Thanks