In ADSI Edit, right-click ADSI Edit, and then click Connect to.
For Connection Point, click Select a well known Naming Context, and then click Configuration.
Double-click Configuration, CN=Configuration,DC=ForestRootDomainName, CN=Services, and CN=Windows NT.
Right-click CN=Directory Service, and then click Properties.
In the Attribute column, click tombstoneLifetime.
Tombstone lifetime value different from OS to OS, for windows server 2000/2003 it’s 60 days, In Windows Server 2003 SP1, default tombstone lifetime (TSL) value has increased from 60 days to 180 days, again in Windows Server 2003 R2 TSL value has been decreased to 60 days, Windows Server 2003 R2 SP2 and windows server 2008 it’s 180 days.