active directory computers

I am way behind on cleaning up active directory computers.  I know there are many in there that are not around anymore.  How do I determine if they are active or not?
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SeanSystem EngineerCommented:
Powershell or CMD as administrator:

dsquery computer -inactive 7 -limit 200

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This will find all computers that have been inactive for 7 weeks.

There is a way to delete them but I'm always more comfortable doing it manually but in case you wish to do so automatically...with cation use:
dsquery computer -inactive 7 | dsrm -noprompt

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you could also just disable them by using:

dsquery computer –disabled | dsrm -noprompt

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Naveen SharmaCommented:
Here is an article which lets you how to find disable and inactive Active Directory user and computer accounts and move them to different OU: Powershell to Find Inactive AD Users and Computers Accounts. Else, use Active Directory clean up solution to identify and clean up inactive Active Directory user accounts.
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