Remove-Item does not work (Permissions) but "cmd /c 'rd /s /q directory' " works fine

Hallo,

I would like to delete a directory of a user with the powershell (I 've run it as administrator):

PS C:\Users> Remove-Item DIRECTORY -Force -Recurse

    + CategoryInfo          : PermissionDenied:...[Remove-Item], UnauthorizedAccessException
    + FullyQualifiedErrorId : RemoveItemUnauthorizedAccessError,Microsoft.PowerShell.Commands.RemoveItemCommand

I can delete it with cmd:

PS C:\Users> cmd /c 'rd /s /q DIRECTORY'

Why is this possible?

Robert