Category: antivirus

  • Unable To Update Defender Preferences

    I was trying to add Microsoft Defender exceptions via PowerShell to a clients server (Windows Server 2016 if that matters) the other day and it was always failing – the error was: This was returning “Failed to modify preferences” on the Add-MpPreference cmdlet and the error code 0x80070073 To fix I needed to uninstall Windows…

  • Updating Exchange 2013 Anti-Malware Agent From A Non-Internet Connected Server

    In Forefront Protection for Exchange (now discontinued) for Exchange 2010 it was possible to run the script at http://support.microsoft.com/kb/2292741 to download the signatures and scan engines when the server did not have a direct connection to the download site at forefrontdl.microsoft.com. To achieve the same with Exchange 2013 and the built-in anti-malware transport agent you…