md_ahmad777

Dear all I am having one problem related to active directory
I am having 300 Pc in my network and only one active directory server is there due to some problem I have formatted the server and installed active directory with the same domain name , now I am receiving many security related massage on system event , due to in correct SID of network computer(Directory Object) added on active directory manually , my question is that if the next time it will happen than I must take the backup of all object or computer objects SID , how we can take the backup of this ?
Its very time consuming process to rejoin the entire computers in domain after reinstalling AD.

Thanks In advance