Ads
related to: windows defender repairantivirusguide.com has been visited by 100K+ users in the past month
- Best Windows Antivirus
Get The Best Windows Antivirus
That Is Right For You!
- #1 Best Antivirus 2025
See Which Antivirus Is Rated 1st
Get The Best Antivirus of 2025
- Top 10 Antivirus
See The Top 10 Antivirus Software
Make Your Device Safe To Use!
- Best Antivirus Software
Find The Best Antivirus Software
Trusted Comparison & Reviews
- Best Virus Protection
Get The Best Virus Protection
Protect Yourself & Your Devices!
- Compare Antivirus
Compare & Find The Best Antivirus
Get The Best Protection Now!
- Best Windows Antivirus
Search results
Results From The WOW.Com Content Network
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.
Tech expert Kurt “CyberGuy" Knutsson says a tech support scam used a fake Windows Defender pop-up, tricking the victim to call and download software.
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
Windows Defender Security Center in light mode on Windows 10 & Windows 11. In Windows 10, the name "Action Center" is now used for application notifications and quick actions. [10] The Action Center from Windows 8.1 was renamed to Security and Maintenance, causing confusion for users and IT administrators. [11]
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.
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]