Deleting directory with WMI

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    by Nobody at 2013-04-09 14:41:06

    Ok, the short story is my environment is Powershell v2 without remoting. I'm having a problem deleting copies of profiles using WMI on remote Windows XP machines. Oddly, it occassionally works... This seems to work reliably on "test" folders that I create. Any idea on why this might be failing, or is there some other WMI class or technique that I can use to occomplish this?

    $a = get-wmiobject -computername $computer -query "SELECT * FROM win32_directory WHERE name ='c:\\documents and settings\\userprofile.old'" -ea stop

    When that doesn't work, I get this error.

    Remove-WmiObject :
    At line:6 char:20
    + $d|remove-wmiobject < <<<
    + CategoryInfo : InvalidOperation: (:) [Remove-WmiObject], COMException
    + FullyQualifiedErrorId : RemoveWMICOMException,Microsoft.PowerShell.Commands.RemoveWmiObject

    by mjolinor at 2013-04-09 16:20:47

    Perhaps it works reliable on the test folders because you created them (and are therefore the owner).

    I note that the WMI class Win32_UserProfile class has a ChangeOwner method. If you use that to take ownership, can you delete it then?

    by Nobody at 2013-04-16 14:09:06

    Finally got a chance to get back to this. To quickly solve my original issue on a bazillion computers, I renamed profile folders and rebooted the computers (xp) so a new profile folder would be created. Now I just want to cleanup the "user.old" folders. So unfortunately the win32_UserProfile class won't apply. The root profile folder owner appears to be local administrators, but subfolders/files owner is generally the actual user.

    As I mentioned before this does work, even after rerunning on a pc where where it previously failed, it's just incredibly unreliable. Fortunately, this isn't a big deal as I can use other tools, I was just trying use this for a learning experience. I was hoping I was overlooking something. I do have another script to delete user profiles the proper way using the win32_userprofile class, and it seems to zap the profile folders quite reliably.

    by Nobody at 2013-04-16 14:44:05

    I did some additional testing, and it appears this only trips up on folders that I renamed using rename-item with a UNC path. Any idea what rename-item changed, other than the name?

    rename-item -path "\\computer\c$\documents and settings\username" -newname "username.old"

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