Is windows defender good enough in 2021?

Opening Windows Defender

Type "Windows Defender" in cortana search box và clichồng on "Windows Defender" in search results.

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This will open Windows Defender App where you can see current virus protection status for your computer, update definitions và persize scans. trang chủ tab will show important information lượt thích status of real-time protection on your computer, vi khuẩn and spyware definition update status, và date of last scan.
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Performing manual scan

You can manually start virus/malware scan on your computer by using "Scan now" button on Home screen in Windows Defender. In "Scan options" section, select type of scan that you want, & cliông chồng on "Scan now" button.
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Quick scan: Quiông chồng scan checks system areas like Registry, Windows System folder etc.. that malicious software, including viruses are most likely to lớn infect. Full scan: Full scan checks all files on your computer & all running programs. This scan will take longer time to lớn complete depending on number và form size of files on your computer. Custom scan: Custom scan will check only specific drives, folders or files that you select. Select "Custom scan" kiểm tra box, và click on "Scan now" button lớn open dialog where you can select drives, folders or files lớn scan. Click on "OK" button to start the scan.
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Check definition update status

Update tab in Windows Defender phầm mềm shows lathử nghiệm information about vi khuẩn definitions on your computer like last updated date và time & definition versions. Windows update regularly auto-updates these definitions in background. You can also get latest definitions by clicking "Update" button in Update tab.
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Cheông chồng history of detected malicious programs on your computer

History tab on Windows defender app shows history of vi khuẩn, malware, spyware và other harmful items detected on your computer.
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Quarantines items: These are items that are detected harmful, và are prevented from running on your computer. These are not removed from your computer.

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Allowed items: These are items that are detected suspicious, but you have manually selected them to be safe and allowed lớn be run on computer. All detected items: This is list of all detected malicious items on your computer.

Customize Windows Defender

Clichồng on "Settings" button (one with Gear icon) in Windows Defender khổng lồ open "Windows Defender Settings" screen in Settings tiện ích. In this screen you can disable real time protection temporarily, enable or disable Microsoft cloud based protection, and add exclusions for files, folders or processes on your machine.
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Turn off slider under "Real time protection" lớn temporarily disable Windows Defender real-time protection. You can manually turn this bachồng ON or Windows will automatically turn this ON after short period of time to lớn keep your computer protected. You can also configure Cloud-based protection & sample submission here. Cloud-based protection and sample submission allows Windows defender to nói qua information about potential security problems that it finds on your computer with Microsoft.

Adding File, thư mục or process exclusions

You can exclude selective files, folders or processes from being scanned by Windows Defender on your computer. This option should only be used rarely when really needed, as excluding items from scanning makes your computer more vulnerable to lớn malware. Cliông chồng on "Add an Exclusion" under "Exclusions" section to lớn open "Add an Exclusion" screen where you can add exclusions to Windows Defender.
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You can add exclusions for below items: Files: exclude specific single tệp tin from scanning. Folders: exclude specific thư mục from scanning. File types: exclude all files with specific file extension from scanning. Processes: exclude processed with specific executable tệp tin (.exe, .com or .scr) from scanning. Cliông chồng on "+" button below desired cửa nhà type to lớn add exclusions to Windows defender exclusion danh sách.

Using another antivi khuẩn on Windows 10

If you install any other antivirus program on Windows 10, Windows will automatically disable Windows defender và stop performing real time scans.