How to take backup?

StartProgramsAccessoriesSystem tools  backup  click on backup tab
There you can select the required one.
The system state backup includes the following files
· Boot files
· Com+ class registration database
· Registry
If the system is domain controller then apart from above files it takes backup of the
following files also.
· Active directory
· Sys vol

Note: If you want to restore the system state backup on a domain controller you have to
restart the computer in Directory Services restore mode, because you are restoring Active
Directory when it is in active. If you want to restore Active Directory it should not be in
active. If you restart the computer in Directory services restore mode the Active directory
is not in active, so you can restore the Active directory.
You can restore Active Directory in two ways

Authoritative restore
Non Authoritative restore

Non Authoritative restore
Restart the computer
Press F8 to select Directory services restore mode
Start  Programs Accessories  system tools  Backup  Click on restore
tab  Select the restore file  Click on restore now
Restart the computer

Authoritative Restore mode
Restart the computer
Press F8 to select Directory services restore mode
Start  Programs Accessories  system tools  Backup  Click on restore
tab  Select the restore file  Click on restore now
Open command prompt
Type ntdsutil
Type authoritative restore
Note: Here you can restore authoritatively entire database or a particular OU. But you
cannot restore a particular object.
Type restore sub tree distinguished name of OU
Ex: research is a OU under yahoo.com, then you have to type distinguished name like
ou=research, dc=yahoo, dc=com