HOW TO FIND INACTIVE COMPUTER ON ACTIVE DIRECTORY USING POWERSHELL

 Hi there,

If you are looking to tidy up your Active Directory by finding inactive computer, I have a PowerShell script that can do just that. Save and run this script on your domain controller. This is just a audit tool and wont delete any thing.

1. Save the code with a ".PS1" extension.
2. Open PowerShell as an admin and run the script.
   
   
   Clear-Host
   Write-Host -ForegroundColor yellow " FIND INACTIVE USERS/STALE COMPUTERS"
   
   # Prompt user for number of days of inactivity
   $daysInactive = Read-Host "Enter number of days of inactivity"
   
   # Calculate the threshold date
   $thresholdDate = (Get-Date).AddDays(-$daysInactive)
   
   # Function to recursively fetch OU path
   function Get-OUPath {
   param (
   [string]$DN
   )
   
   # Split DistinguishedName into its components
   $components = $DN -split ','
   $ouPath = @()
   
   # Iterate through components to construct OU path
   for ($i = 1; $i -lt $components.Count; $i++) {
   if ($components[$i] -match '^OU=(.+)$') {
   $ouPath += $Matches[1]
   }
   }
   
   # Reverse the OU path to get correct order (child to parent)
   $ouPath = $ouPath -join '\'
   return $ouPath
   }
   
   # Search for inactive computers in Active Directory
   $inactiveComputers = Get-ADComputer -Filter {LastLogonTimeStamp -lt $thresholdDate -and Enabled -eq $true} -Properties LastLogonDate, DistinguishedName |
   Select-Object Name, LastLogonDate, @{
   Name="OUPath";
   Expression={
   # Call Get-OUPath function to retrieve OU path
   Get-OUPath -DN $_.DistinguishedName
   }
   }
   
   # Display results in Out-GridView
   $inactiveComputers | Out-GridView