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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.
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
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1. Click Start | Run. • If you do not see Run, click the Search programs and files or Search box. 2. Type winver and press Enter. 3. The About Windows window opens. Note the version of the Windows operating system installed on your computer, and then click OK.
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.
Perform an optional AOL Security Check Scan your computer for viruses and malware Note: Please check to see that your McAfee software is updated by following the instructions given in our help article Using McAfee: Features Follow the instructions in that help article on how to manually update your McAfee virus software.
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.
To be proactive, check what version of Windows you are using on your PC and consider upgrading to the newest version. If you choose not to upgrade, you may be at risk for serious security issues or have other software malfunctions. For more info, reach out to Microsoft directly.
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