Windows 10: New version of our software gets SmartScreen warning even though the file is signed

We built a new version of our software, the file is signed but Windows SmartScreen still show this message:

https://i.imgur.com/EQco9m9.png

Microsoft Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk.

What does SmartScreen require to not show this message?

Thank you

submitted by /u/PeteRoy
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:)

 

SmartScreen not so smart.

Hi,

I would like to inform that Windows SmartScreen helps keep your PC safe by checking downloaded files and web content within apps to help protect you from malicious software and potentially unsafe web content. Before an unknown or potentially
unsafe downloaded file is opened, Windows will display a warning. If SmartScreen detects potentially unsafe web content in an app, Windows will display a warning in place of the content. To disable SmartScreen, follow the steps below:

• Type SmartScreen settings in the Search box and press Enter.
• Click on Change Windows SmartScreen Settings in the left navigation pane.
• Select the option, Don't do anything (turn off Windows SmartScreen) and click on OK.

If you would like to develop a program, then suggest you to post your query in MSDN forums in the link provided below:

Msdn forums - Visual Studio General Questions



Hope the information provided is helpful. Feel free to write to us for any other assistance with Windows, we'll be glad to assist you.

 

Microsoft Defender Smartscreen

Hi COLINGILBERT1,

Sorry to hear you're experiencing this issue. I'm an Independent Advisor and consumer of Microsoft products just like you. Let me help you with your concern.

Microsoft Defender SmartScreen checks downloaded files against a list of reported malicious software sites and known unsafe programs and against list of files that are well known and downloaded by many Windows users. If the file you downloaded is on the malicious
list or is not commonly downloaded it will show a warning, advising caution. If you believe that the file is not malicious and you trust the source then you can ignore the warning by clicking "Run anyway".

Refer to the below link for the benefits of Microsoft Defender SmartScreen.

https://docs.microsoft.com/en-us/windows/securi...

 

Defender/SmartScreen warning.

Though this doesn't explain why an application's specific reputation might have changed, the addition of granular controls for these settings in the recently released Windows 10 Creators Update may have something to do with it.

Smartscreen in Creators Update

This newer implementation of SmartScreen within Windows 10 has also been renamed to

Windows Defender SmartScreen rather than the old Windows SmartSreen and SmartScreen Filter name within the browser.

Again, none of this specifically explains a change in reputation, but it's possible that all of these changes might have affected the reputation for some applications or certificates.

Since you didn't specify what type of certificate you are using, since this affects the ability to add or gain reputation status more quickly. The

Windows Defender SmartScreen® Filter Frequently Asked Questions page covers this as follows.

There are industry best practices for application developers that will affect your download's reputation and help ensure reputation is established and maintained. If your program is not digitally signed, reputation cannot automatically be shared
across different versions and builds.

To help establish your application's reputation, consider doing the following:

• Digitally sign your programs with an Authenticode signature
  
  Reputation is generated and assigned to digital certificates as well as specific files. Digital certificates allow data to be aggregated and assigned to a single certificate rather than many individual programs. Only Authenticode Certificates issued by a Certificate
  Authority (CA) that is a member of the Windows Root Certificate Program can establish reputation.
• Apply for a Windows Logo
  
  To learn more visit the
  Windows Logo Program page on MSDN.

Rob