Windows Server 2003 introduced the ability to restore tombstoned objects.
The AdRestore.exe command-line utility enumerates the tombstoned objects in a domain and provides an option to restore then, one by one.
When you open a CMD prompt and type adrestore /?, you receive:
AdRestore v1.1 by Mark Russinovich Sysinternals - www.sysinternals.com Usage: AdRestore \[-r\] \[searchfilter\] -r Prompt to restore deleted objects found. This command enumerates all objects with the string "comp" in the name. adrestore comp