Vous pouvez use dsquery (technet link) to locate inactive computers:
dsquery computer -inactive 10 -limit 0
Shows computers that have been inactive for 10 weeks ou more.
From dsquery computer /? (technet link)
...
-inactive <NumWeeks> Finds computers that have been inactive (stale)
for at least <NumWeeks> number of weeks.
...
Vous pouvez pipe le output into dsrm (technet link) si you want to supprimez le listing depuis le domain. Please note this will not bother prompting you so apply le approprié amount of caution.
dsquery computer -inactive 10 -limit 0 | dsrm -noprompt