
While we recommend you have the SmartScreen filter turned on all the time, you can disable it easily from the Windows Security settings. However, some experienced users may find the feature annoying as it can even block safe apps requiring additional steps to run the setup. SmartScreen is enabled by default on all the Windows OS running systems. When enabled, it helps protect your computer against malicious and phishing sites and block downloads. SmartScreen is also part of Microsoft Edge's security settings. It can also protect you from Microsoft Store and third-party sourced apps that are low on reputation and known to cause unexpected behavior. You can configure it to block apps and files by checking unrecognized apps and files from the web.

When a match is found, it blocks the download or site access and warns the user about the action taken. You can do this by right-clicking on the PowerShell icon and selecting 'Run as Administrator'.

Its recommended that you configure with preset security policies (if I havent said this enough), but some organizations must configure manually. When enabled, SmartScreen screens your downloads against known suspicious sites and developers. Manual steps to Configure Microsoft Defender for Office 365 policies.

SmartScreen relies on reputation-based protection to protect your device from malicious or potentially unwanted apps and websites. Click Edit > New > Dword (32-bit) value.How Does Windows SmartScreen Filter Work?.Navigate to the following key: HKEY_LOCAL_MACHINE \ SOFTWARE \ Policies \ Microsoft \ Windows Defender.Then, open the Registry editor by clicking OK.How to permanently disable Windows Defender? Toggle the switch below Real-time protection to the Off position. Learn how to turn Defender back on with this easy tutorial. Windows Defender is a common AV solution, and attackers know how to work-around it.

Once in the Windows Security app, click on Virus & threat protection.
