How to fix "This app has been blocked for your protection" prompt on Windows 10

How to fix "This app has been blocked for your protection" prompt on Windows 10

How to open a file blocked by Windows Defender SmartScreen

If a file you know is safe is going to give you trouble when you attempt to launch it, you can quickly give it permission to open.

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  1. Navigate to the file or program that's being blocked by SmartScreen.
  2. Right-click the file.
  3. Click Properties.

    Right-click the file. Click Properties.

  4. Click the checkbox next to Unblock so that a checkmark appears.
  5. Click Apply.

    Click the checkbox next to Unblock. Click Apply.

The file should now be treated as safe by SmartScreen and you'll be allowed to open it. If you're running into further problems, try running the program as an Administrator in addition to the steps above.

Or, you may see the following screen.

When SmartScreen appears it usually says the app you want to install is unrecognized. The filter then leaves you with only one button to push: Don't run.

By showing only one option, Microsoft hopes to prevent the majority of users from running untrusted apps, because many won't bother to look beyond that single button.
If you still want to take the risk and proceed, click the More info link at the end of the warning paragraph.

When you click that, you then see a window like this one at left, with a new option: Run anyway. Click that, and you're all set. The program will start installing as normal.


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