Cleanup 2012 after 2003 migration

I've finished 2003 to 2012 migration, all working fine. The migration moved over some user accounts such as Iuser_server and  Iwam_server. I am assuming these can be deleted, they are marked as active (not by me).

There are some other objects in AD computers and users that were part of the old 2003 when we had Trend Micro, can these also be removed?Is there some easy way to clean up all this old stuff?
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dpachecoAsked:
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VB ITSSpecialist ConsultantCommented:
If you have completed the migration and the old 2003 has been decomissioned properly (i.e. demoted and all applications and services migrated to your 2012 server) then you can delete the IUSER and IWAM accounts. I would personally just disable the accounts and wait a while - if nothing out of the ordinary occurs then you can delete them. At least you will then have the option to enable these accounts should an application or service require it.

There are also third-party tools out there that can help you cleanup AD by identifying accounts that haven't been logged used for an x amount of days. One I've used in the past and works well (from my experience) is AD Tidy.

It might be best if you give us the usernames of the accounts you're looking to remove and we can confirm if they can be removed without repercussions or not.
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dpachecoAuthor Commented:
Thanks. Yes the old server has been decommissioned. Besides these 2 users there are exchange objects, I'll have to check the other items/accounts. They stopped using exchange months ago but I had just disabled all services and didn't uninstall that's why those show up.
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VB ITSSpecialist ConsultantCommented:
Did you uninstall from the 2003 server before you switched it off? If the plan wasn't to use Exchange in the new 2012 environment then it would have been better to uninstall Exchange otherwise you will have issues if you ever plan to redeploy Exchange again.
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dpachecoAuthor Commented:
I should've been specific, this is Essentials 2012 R2 so they will not be installing Exchange on it.
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VB ITSSpecialist ConsultantCommented:
OK fair enough. I still would have personally gracefully removed Exchange from the environment in case of any weird lingering issues that may arise down the track. Let me know if you need any info on other accounts that you'd like to remove.
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dpachecoAuthor Commented:
I've removed the Exchange objects and other accounts after disabling them for a period, thanks.
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Windows Server 2012

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