optimizerDuck

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SmartScreen Warning ​

"Windows protected your PC"

What is SmartScreen? ​

SmartScreen is a security feature in Windows that helps protect you from malicious software. It works by checking the reputation of files that you download and run, and it will block any files that it deems suspicious.

Why am I seeing this warning? ​

When you first run optimizerDuck, Windows SmartScreen may display a warning that says "Windows protected your PC". This happens because the app is not digitally signed with a paid code signing certificate.

This is safe to bypass. optimizerDuck is open source and you can review the entire source code on GitHub.

How to fix ​

  1. Click "More info" on the SmartScreen popup
  2. Click "Run anyway"

Tip

This warning only appears the first time you run the application. After that, Windows will remember your choice.

The app still won't open after clicking "Run anyway"? ​

If SmartScreen lets the file through but the app still crashes or fails to launch:

  1. Make sure you are running as Administrator: right-click the .exe and select Run as administrator
  2. Download the latest version from Releases: an outdated build may be incompatible with your Windows version
  3. See the App Won't Open guide for more detailed troubleshooting

Still having issues? ​

If you continue to experience problems: