script to remove groups/users from Local Administators group

Could you please help me with the script that would read the excel file with two columns - computername,username and then remove the groups/users from Local Administrators group on each computer.

For example


So, the script would read the excel file and remove the groups/users listed in the username column from Local Administrators group
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Do you have the script with which you would like help?

Are these domain based systems?  Any script would require that all the Computers have access/rights for the user with whose credentials the script will be running.

Whether it is VB, powershell or wmi.

Using GPO and restricted groups is the best way to manage the membership of the Administrators group, while it also can be used to auto-add certain user to specified groups.
Subash SundharanIT Infrastructure Architect Commented:
Check this code and see if it work as expected..
Import-Csv C:\input.csv | %{
#Name of local group to remove user or group from   
$localGroup = 'Administrators'
 $user = $_.username
 $computer = $_.computername
 #Remove user or group from Local group

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creative555Author Commented:
THank you so much.  I am getting this error though:

Exception calling "remove" with "1" argument(s): "The trust relationship between the primary domain and the trusted
ain failed.
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Subash SundharanIT Infrastructure Architect Commented:
Are you able to manually remove the group membership of user/group? If yes.. are you using the same account to run the script?
creative555Author Commented:
Forgot to mention, the groups and users to remove would be domain groups. For example, in this format on the spreadsheet:

creative555Author Commented:
yep. I am using the same account to run script and I have no issues removing groups manually with that account. still getting this error
PS C:\migprep> .\Remove-LocalAdministrators.ps1
Exception calling "remove" with "1" argument(s): "The trust relationship between the primary domain and the tru
ain failed.
At C:\migprep\Remove-LocalAdministrators.ps1:7 char:54
+ ([ADSI]"WinNT://$computer/$localGroup,group").remove <<<< ("WinNT://$user")
    + CategoryInfo : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : CatchFromBaseAdapterMethodInvokeTI
Subash SundharanIT Infrastructure Architect Commented:
ok replace line 4 with following.
$user = $_.username -replace "\\","/"

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creative555Author Commented:
This script actually works but how do I modify it to read computers and domain usernames from
inputfile with computername and username?


$strDomain = Read-Host "Enter Domain" 
$strComputer = Read-Host "Enter System Name" 
$strUser = Read-Host "Enter Username" 
$computer = [ADSI]("WinNT://" + $strComputer + ",computer") 
$group = $computer.psbase.children.find("Administrators"

function ListAdministrator
{$members = $group.psbase.invoke("Members") | %{$_.GetType().InvokeMember("Name",'GetProperty',$null,$_,$null)
$group.Remove("WinNT://" + $strDomain + "/" + $strUser) 
Subash SundharanIT Infrastructure Architect Commented:
Did you try the suggested change in my code?
creative555Author Commented:
It is working with the change below. Thank you so much!!!!
$user = $_.username -replace "\\","/"
creative555Author Commented:
Excellent! Thank you very much!
Subash SundharanIT Infrastructure Architect Commented:
You are welcome!
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VB Script

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