How to Fix "This module is blocked from loading into the local security authority"
🔧 Fix the "Module is Blocked from Loading into the Local Security Authority" Error (Bonjour Issue)
Welcome back to Undiluted Tech! In today’s quick tutorial, we tackle a Windows error that’s been frustrating many users:
“This module is blocked from loading into the local security authority.”
This issue is often related to Bonjour, a service installed by apps like iTunes, Adobe, or some printer software. If you're seeing this error, it likely means the mdnsNSP.dll module is trying to load into LSASS, which Windows blocks for security reasons.
👨💻 In this video, you’ll learn how to:
Unregister the problematic DLLs
Delete the Bonjour service
Prevent the error from appearing again
🧾 Commands Used in This Video:
regsvr32 /u "C:\Program Files\Bonjour\mdnsNSP.dll"
regsvr32 /u "C:\Program Files (x86)\Bonjour\mdnsNSP.dll"
sc.exe delete "Bonjour Service"
⚠️ Make sure to run Command Prompt as Administrator!
✅ If this helped, don’t forget to like, subscribe, and share this video to help others dealing with this issue!
📌 Stay tuned to Undiluted Tech for more real-world fixes, tech insights, and practical tutorials.
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