Update check_windows_updates.ps1

Changes to solve the situation when updates are installed but status is still WARNING with waiting updates

check_windows_updates.ps1

@@ -1,13 +1,13 @@
 <#
 .VERSION
-1.3.0
+1.4.0
 
-.AUTOR
+.AUTHOR
 John Gonzalez
 #>
 
 $script = "check_windows_updates.ps1"
-$version = "1.3.0"
+$version = "1.4.0"
 $author = "John Gonzalez"
 
 if ($args.Contains("-v")) {
@@ -19,18 +19,18 @@ if ($args.Contains("-v")) {
 $updateSession = New-Object -ComObject Microsoft.Update.Session
 $updateSearcher = $updateSession.CreateUpdateSearcher()
 
-# Search for all updates
-$allUpdates = $updateSearcher.Search("IsHidden=0")
+# Search for updates that aren't installed
+$notInstalledUpdates = $updateSearcher.Search("IsInstalled=0 and IsHidden=0").Updates
 
 # Filter out downloaded and installed updates
-$relevantUpdates = $allUpdates.Updates | Where-Object {($_.IsDownloaded -eq $false -or $_.IsInstalled -eq $false) -and $_.Title -notlike "Security Intelligence Update for Microsoft Defender Antivirus*"}
+$relevantUpdates = $notInstalledUpdates | Where-Object { $_.Title -notlike "Security Intelligence Update for Microsoft Defender Antivirus*" }
 
 # Get the count of available updates
 $updateCount = $relevantUpdates.Count
 
 # Get the count of important and critical updates
-$criticalCount = $relevantUpdates | Where-Object {($_.MsrcSeverity -ge "Critical" -and $_.IsHidden -eq $false) -or $_.Title -like "Security Intelligence Update for Microsoft Defender Antivirus*"} | Measure-Object | Select-Object -ExpandProperty Count
-$importantCount = $relevantUpdates | Where-Object {$_.MsrcSeverity -eq "Important" -and $_.IsHidden -eq $false -and $_.Title -notlike "Security Intelligence Update for Microsoft Defender Antivirus*"} | Measure-Object | Select-Object -ExpandProperty Count
+$criticalCount = $relevantUpdates | Where-Object { ($_.MsrcSeverity -ge "Critical" -and $_.IsHidden -eq $false) -or $_.Title -like "Security Intelligence Update for Microsoft Defender Antivirus*" } | Measure-Object | Select-Object -ExpandProperty Count
+$importantCount = $relevantUpdates | Where-Object { $_.MsrcSeverity -eq "Important" -and $_.IsHidden -eq $false -and $_.Title -notlike "Security Intelligence Update for Microsoft Defender Antivirus*" } | Measure-Object | Select-Object -ExpandProperty Count
 
 # Set the exit code and message based on the number and severity of updates
 
@@ -43,4 +43,4 @@ if ($updateCount -eq 0) {
 } else {
     Write-Host "$updateCount Windows updates are available. $importantCount are important and $criticalCount are critical."
     exit 2
-}
+}