Auto-commit: 2025-10-31 08:55:43

uninstall-kb-pswindowsupdate/uninstallKB.ps1

@@ -0,0 +1,36 @@
+#Requires -RunAsAdministrator
+#Requires -Modules PSWindowsUpdate
+
+param(
+    [Parameter(Mandatory)]
+    [ValidatePattern('^(?i:KB)?\d+$')]
+    [string]$KB,
+    [switch]$NoRestart
+)
+
+# Normalize input to "KBxxxxxxx"
+if ($KB -match '^\d+$') { $KB = "KB$KB" }
+
+try {
+    Import-Module PSWindowsUpdate -ErrorAction Stop
+
+    # Query only installed updates matching the KB
+    $installed = Get-WindowsUpdate -IsInstalled -KBArticleID $KB -ErrorAction SilentlyContinue
+
+    if (-not $installed) {
+        Write-Host "Update $KB not found on this system."
+        return
+    }
+
+    Write-Host "Found installed update: $KB"
+    $removeParams = @{ KBArticleID = $KB; Confirm = $false }
+    if ($NoRestart) { $removeParams['NoRestart'] = $true }
+
+    Write-Host "Uninstalling $KB ..."
+    Remove-WindowsUpdate @removeParams -ErrorAction Stop
+    Write-Host "Uninstall command issued for $KB."
+    if (-not $NoRestart) { Write-Host "A restart may be required." }
+}
+catch {
+    Write-Error "Failed to uninstall $KB. $($_.Exception.Message)"
+}