Added a script to automatically disable expired users.

microsoft/active_directory/disable_expired_users/start.ps1

@@ -0,0 +1,24 @@
+# This script searches AD for user accounts with an expiration date in the past. If it finds any, it actually disables them.
+
+# This is the maximum number of accounts that the script may disable in a single run. A safety measure to prevent accidentally disabling users in bulk.
+$MaxActions = 10
+
+$LogDir = Join-Path -Path $PSScriptRoot -ChildPath "logs"
+New-Item $LogDir -ItemType Directory -ErrorAction SilentlyContinue > $null
+$ReportId = Get-Date -Format "yyyyMMdd-HHmmss"
+
+$Users = Get-ADUser -Filter * -Properties SamAccountName, Enabled, AccountExpirationDate | select SamAccountName, Enabled, AccountExpirationDate
+
+&{
+    ForEach($User in $Users) {
+        If($User.Enabled -eq $true -and $User.AccountExpirationDate -and ($User.AccountExpirationDate -le (Get-Date))) {
+            Disable-ADAccount -Identity $User.SamAccountName
+            "$($User.SamAccountName) has expired on $($User.AccountExpirationDate) and has been disabled."
+            $MaxActions--
+            If($MaxActions -eq 0) {
+                "Maximum number of actions reached for this run. Quitting..."
+                Break
+            }
+        }
+    }
+} *>&1 | Tee-Object -FilePath (Join-Path -Path $LogDir -ChildPath "log-$ReportId.txt")