UpdateBlockerProTray: A Lightweight, Stable Windows Update Blocker That Actually Works

I built a small utility to solve one of the most annoying Windows issues.

I've always been frustrated by Windows Update automatically re-enabling itself via WaaSMedicSvc and SIHClient, even after manually disabling services.

Most existing "blocker" tools try to fight Windows by deleting services or modifying ACLs, which often leads to system instability or repair loops.

That's why I created UpdateBlockerProTray.

How it works

Unlike other methods, this tool only blocks the execution layer (wuauserv / UsoSvc) and doesn't touch the repair layer (MedicSvc). This keeps Windows stable while successfully preventing forced updates like Windows 11 25H2.

Key Features

• Blocks wuauserv and UsoSvc instantly.
• 0% CPU usage / Lightweight tray app.
• No registry hacks or service corruption.
• Works even during forced update phases.

Check out the full source and documentation on GitHub:
https://github.com/type2Rhyme/UpdateBlockerProTray

Happy blocking!