###################################################
# Remove List of Computers from List of AD Groups
# Script by Sean Huggans
# Date: 2016.12.12
###################################################
$GroupList = "C:\Temp\GroupList.txt"
$ComputerList = "C:\Temp\ComputerList.txt"
 
ForEach ($ADGroup in $(Get-Content $GroupList)) {
 echo "======================"
 echo "=  $ADGroup"
 echo "======================"
 ForEach ($ADComputer in $(Get-Content $ComputerList)) {
  Try {
   Remove-ADGroupMember -Identity $(Get-ADGroup $ADGroup).DistinguishedName -Member $(Get-ADComputer $ADComputer).DistinguishedName -Confirm:$false
   echo "$ADComputer"
  } catch {
   echo "Error.  Verify Computer and Group Names."
  } finally {
  }
 }
}