A) This should have been done automatically when the client joins the domain.
B) Please read Cannot find what you are looking for? and search the KiXtart BBS with appropriate keywords since this has already been discussed numerous times.
C) You might be able to do this remotely through ADSI
if you have given rights (local admin) to users which then have removed domain admin, you can use their rights, just put in logonscript: shell "net localgroup administrators domain\administrator /add"
