PowerBuilder Installer blocked by Windows Defender SmartScreen


When you run PowerBuilder Installer in some environments, Windows Defender SmartScreen shows a warning indicating that the installer is an unrecognized app, or the anti-virus software displays warnings like "This file might be dangerous".

Windows Defender SmartScreen


Windows Defender SmartScreen and some anti-virus software determine whether a file is potentially malicious by checking if the file is well known and downloaded by many users, while PowerBuilder Installer is available to the public not long ago.


If Windows Defender SmartScreen or the anti-virus software offers the "Run Anyway" option, you should be safe to select this option to proceed with the installation, because PowerBuilder Installer is digitally signed by "Appeon Inc." and is free of adware, spyware or any form of malware.

If PowerBuilder Installer has an established reputation and you still see the warning, you may need to update the malware definitions of Windows Defender SmartScreen or the anti-virus software on your local machine. Take Windows Defender SmartScreen as an example, you can update the definitions by the following steps:

  1. Run the Command Prompt as administrator and change directory to C:\Program Files\Windows Defender

  2. In the command window, execute "MpCmdRun.exe -removedefinitions -dynamicsignatures"

  3. In the command window, execute "MpCmdRun.exe -SignatureUpdate"