Check if any user is logged on

Winget-AutoUpdate/Winget-Upgrade.ps1

@@ -271,12 +271,23 @@ if (Test-Network) {
             Write-Log "No new update." "Green"
         }
 
-        #Run WAU in user context if currently as system and the user task exist
+        #Check if any user is logged on if System and run User task (if installed)
+        if ($IsSystem) {
+            #User check routine from: https://stackoverflow.com/questions/23219718/powershell-script-to-see-currently-logged-in-users-domain-and-machine-status
+            $explorerprocesses = @(Get-WmiObject -Query "Select * FROM Win32_Process WHERE Name='explorer.exe'" -ErrorAction SilentlyContinue)
+            If ($explorerprocesses.Count -eq 0)
+            {
+                Write-Log "No explorer process found / Nobody interactively logged on.. ..exiting"
+                Exit 0
+            }
+            Else
+            {
+                #Run WAU in user context if the user task exist
                 $UserScheduledTask = Get-ScheduledTask -TaskName "Winget-AutoUpdate-UserContext" -ErrorAction SilentlyContinue
-        if ($IsSystem -and $UserScheduledTask) {
+                if ($UserScheduledTask) {
 
                     #Get Winget system apps to excape them befor running user context
-            Write-Log "Get list of installed Winget apps in System context..."
+                    Write-Log "User logged on, get a list of installed Winget apps in System context..."
                     Get-WingetSystemApps
 
                     #Run user context scheduled task
@@ -288,6 +299,8 @@ if (Test-Network) {
                     Write-Log "User context execution not installed"
                 }
             }        
+        }
+    }
     else {
         Write-Log "Critical: Winget not installed or detected, exiting..." "red"
         New-Item "$WorkingDir\logs\error.txt" -Value "Winget not installed or detected" -Force