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Microsoft Defender Antivirus (formerly Windows Defender) is an antivirus software component of Microsoft Windows.It was first released as a downloadable free anti-spyware program for Windows XP and was shipped with Windows Vista and Windows 7.
Once installed, Alureon manipulates the Windows Registry to block access to Windows Task Manager, Windows Update, and the desktop. It also attempts to disable anti-virus software. Alureon has also been known to redirect search engines to commit click fraud. Google has taken steps to mitigate this for their users by scanning for malicious ...
Microsoft Safety Scanner is a free time-limited virus scan utility similar to the Windows Malicious Software Removal Tool. It is used to scan a system for computer viruses and other forms of malware. It was released on 15 April 2011, following the discontinuation of the Windows Live OneCare Safety Scanner. [4]
Since support for Windows 2000 ended on July 13, 2010, Microsoft stopped distributing the tool to Windows 2000 users via Windows Update. The last version of the tool that could run on Windows 2000 was 4.20, released on May 14, 2013. Starting with version 5.1, released on June 11, 2013, support for Windows 2000 was dropped altogether.
The term "on-demand scan" refers to the possibility of performing a manual scan (by the user) on the entire computer/device, while "on-access scan" refers to the ability of a product to automatically scan every file at its creation or subsequent modification.
SFC Scan: Revives corrupted or deleted system files by copying them from the Windows installation source Search : Searches a disk for files Defender (formerly Standalone System Sweeper): An antivirus that scans a system for malware, rootkits, and potentially unwanted software.
The latest version of 4.10 was released on 29 November 2016. It was version 4.10.209.0 for Windows Vista and Windows 7. This update fixes a bug that was introduced earlier in version 4.10.205.0 which removed the "Scan with Microsoft Security Essentials" entry from the right-click context menu on files and folders.
Starting with Windows 10 Creators Update, Microsoft has introduced a new component called Windows Defender Security Center (WDSC) that provides much of the same functionality. This new component is a Universal Windows Platform app and is also the default front-end for Windows Defender.