To enable IE Mode, prepare by downloading the Edge Policy files here: Download Microsoft Edge for business – Microsoft Read on to enable IE Mode with Edge Browser, redirect specific sites to open in IE Mode, and more. Microsoft Edge includes a feature called “IE Mode”, which enables the backward compatibility for legacy browser features that do not exist in modern browsers. If the file isn't on that list, Microsoft Defender SmartScreen shows a warning, advising caution.The end of Internet Explorer 11 starts on June 15, 2022! Prepare your organization to make the switch while still supporting legacy applications with functionality that rely on Internet Explorer.

Checking downloaded files against a list of files that are well known and downloaded by many Windows users.If it finds a match, Microsoft Defender SmartScreen shows a warning to let the user know that the site might be malicious. Checking downloaded files against a list of reported malicious software sites and programs known to be unsafe.Microsoft Defender SmartScreen determines whether a downloaded app or app installer is potentially malicious by: Checking the visited sites against a dynamic list of reported phishing sites and malicious software sites.If Microsoft Defender SmartScreen determines that a page is suspicious, it will show a warning page to advise caution. Analyzing visited webpages looking for indications of suspicious behavior.Microsoft Defender SmartScreen determines whether a site is potentially malicious by:

Microsoft Edge uses Microsoft Defender SmartScreen to protect against phishing or malware websites and applications, and the downloading of potentially malicious files.

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