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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.
Windows Defender pop-up scam 1) Unsolicited pop-ups claiming to be from Microsoft or other security services: Janet’s story highlights a common scam tactic, which is fake alerts masquerading as ...
The service delivers software updates for Windows, as well as the various Microsoft antivirus products, including Windows Defender and Microsoft Security Essentials. Since its inception, Microsoft has introduced two extensions of the service: Microsoft Update and Windows Update for Business.
SmartScreen (officially called Windows SmartScreen, Windows Defender SmartScreen and SmartScreen Filter in different places) is a cloud-based anti-phishing and anti-malware component included in several Microsoft products: All versions of the Microsoft Windows operating system since Windows 8; Web browsers Internet Explorer and Microsoft Edge
Some variants are more harmful; they display popups whenever the user tries to start an application or even tries to navigate the hard drive, especially after the computer is restarted. It does this by modifying the Windows registry. This can clog the screen with repeated pop-ups, potentially making the computer virtually unusable.
Version 4.0 for Windows 7 SP1 (x64) was tested in June 2012 and achieved scores of 2.5, 5.5 and 5.5 for protection, repair and usability. [63] In October 2012, the product lost its AV-TEST certification when Microsoft Security Essentials 4.1 achieved scores of 1.5, 3.5 and 5.5 for its protection, repair and usability. [64] [65]
User Account Control (UAC) is a mandatory access control enforcement feature introduced with Microsoft's Windows Vista [1] and Windows Server 2008 operating systems, with a more relaxed [2] version also present in Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, Windows 8.1, Windows Server 2012 R2, Windows 10, and Windows 11.
In Windows 2000, an ERD can be created by clicking "Backup" under "System Tools" (Start->Programs->Accessories->System Tools->Backup). It can be used for the following repair functions: Inspect and repair the startup environment. Verify the Windows 2000 system files and replace missing or damaged files. Inspect and repair the boot sector. [5]