Fix for issue EventSource AdvancedOptimizations missing if older VDOT…

… was previously run #185

Windows_VDOT.ps1

@@ -122,15 +122,19 @@ BEGIN
     {
         New-ItemProperty -Path $KeyPath -Name $LastRun -Value $LastRunValue | Out-Null
     }
-
+
+    $EventSources = @('VDOT', 'WindowsMediaPlayer', 'AppxPackages', 'ScheduledTasks', 'DefaultUserSettings', 'Autologgers', 'Services', 'NetworkOptimizations', 'LGPO', 'AdvancedOptimizations', 'DiskCleanup')
     If (-not([System.Diagnostics.EventLog]::SourceExists("Virtual Desktop Optimization")))
     {
         # All VDOT main function Event ID's [1-9]
-        $EventSources = @('VDOT', 'WindowsMediaPlayer', 'AppxPackages', 'ScheduledTasks', 'DefaultUserSettings', 'Autologgers', 'Services', 'NetworkOptimizations', 'LGPO', 'AdvancedOptimizations', 'DiskCleanup')
         New-EventLog -Source $EventSources -LogName 'Virtual Desktop Optimization'
         Limit-EventLog -OverflowAction OverWriteAsNeeded -MaximumSize 64KB -LogName 'Virtual Desktop Optimization'
         Write-EventLog -LogName 'Virtual Desktop Optimization' -Source 'VDOT' -EntryType Information -EventId 1 -Message "Log Created"
     }
+    Else 
+    {
+        New-EventLog -Source $EventSources -LogName 'Virtual Desktop Optimization' -ErrorAction SilentlyContinue
+    }
     Write-EventLog -LogName 'Virtual Desktop Optimization' -Source 'VDOT' -EntryType Information -EventId 1 -Message "Starting VDOT by user '$env:USERNAME', for VDOT build '$WindowsVersion', with the following options:`n$($PSBoundParameters | Out-String)" 
 
     $StartTime = Get-Date