Resources for IT Professionals. Sign in. United States English. Ask a question. Quick access. Search related threads. Remove From My Forums. On the contrary, it helps protect your PC from virus infection by blocking the download of malware or files from malicious websites.
Smartscreen, also known as Windows Defender Smartscreen with its smartscreen. Originally introduced in Windows 8, this utility aims to prevent you from downloading malware. Now, Windows 10 has an improved version of this utility.
When you open Task Manager, you may see the process SmartScreen running in the background. If the app or file has been seen before and it is known to be safe, it can pass through SmartScreen filter. If the app has been seen before but it is known to be dangerous, then Smartscreen will block the malware to protect your computer from virus infection. In Windows 10, Windows Defender SmartScreen can also let you know when the files that you try to launch could harm the computer.
The warning that Windows Defender SmartScreen displays when potentially dangerous applications are detected is the following:. Windows Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk. Show Hidden Files and Folders Create a Desktop Shortcut Pin Revo Uninstaller to Taskbar Unblock a file blocked by SmartScreen Deactivate Revo Uninstaller Pro Update license subscription Ask a question.
Please leave this field empty. The primary benefits are:. Anti-phishing and anti-malware support. Microsoft Defender SmartScreen helps to protect users from sites that are reported to host phishing attacks or attempt to distribute malicious software.
It can also help protect against deceptive advertisements, scam sites, and drive-by attacks. Drive-by attacks are web-based attacks that tend to start on a trusted site, targeting security vulnerabilities in commonly used software.
Because drive-by attacks can happen even if the user does not click or download anything on the page, the danger often goes unnoticed. For more info about drive-by attacks, see Evolving Microsoft Defender SmartScreen to protect you from drive-by attacks. Reputation-based URL and app protection. Microsoft Defender SmartScreen evaluates a website's URLs to determine if they're known to distribute or host unsafe content.
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