Windows 10 & 11 include Windows Security, which provides the latest antivirut protection. Your device will be actively protected from the moment you start Windows. Windows Security continually scans for malware (malicious software), viruses, & security threats. In addition to lớn this real-time protection, updates are downloaded automatically khổng lồ help keep your device safe và protect it from threats.

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Windows 10 or 11 in S mode

Some features will be a little different if you"re running Windows 10 or 11 in S mode. Because this mode is streamlined for tighter security, the Virus & threat protection area has fewer options. But don"t worry—the built-in security of this mode automatically prevents viruses & other threats from running on your device, & you"ll receive security updates automatically. For more info, see Windows 10 or 11 in S mode FAQ.

Important security info

Windows Security is built-in to Windows and includes an antivirus program called Defender Antivirus. (In early versions of Windows 10, Windows Security is called Windows Defender Security Center).

If you have another antivi khuẩn phầm mềm installed & turned on, Defender Antivirut will turn off automatically. If you uninstall the other tiện ích, Defender Antivirut will turn baông chồng on automatically.

Underst& và customize Windows Security features

Windows Security is your home khổng lồ manage the tools that protect your device and your data:

To customize how your device is protected with these Windows Security features select Start  > Settings > Update và Security > Windows Security  or select the button below.Open Windows Security settings

Status icons indicate your level of safety:

Green means there aren’t any recommended actions right now.

Yellow means there is a safety recommendation for you.

Red is a warning that something needs your immediate attention.

Run a malware scan manually

When you"re concerned about risks lớn a specific file or thư mục, you can right-cliông chồng the file or thư mục in File Explorer, then select Scan with Defender.

If you suspect there"s malware or a vi khuẩn on your device, you should immediately run a quichồng scan. This is much faster than running a full scan on all your files & folders.

Run a quichồng scan in Windows Security

Under Current threats, select Quiông xã scan (or in early versions of Windows 10, under Threat history, select Scan now).

If the scan doesn"t find any issues, but you"re still concerned, you may want to check your device more thoroughly.

Run an advanced scan in Windows Security

Select Start  > Settings  > Update & Security > Windows Security & then Virus và threat protection.

Under Current threats, select Scan options (or in early versions of Windows 10, under Threat history, select Run a new advanced scan).

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Select one of the scan options:

Full scan (kiểm tra files and programs currently running on your device)

Custom scan (scan specific files or folders)

Select Scan now.

Learn more about running an advanced scan

Note: Because of streamlined security, this process isn"t available if you"re running Windows 10 or 11 in S mode.

Schedule your own scan

Even though Windows Security is regularly scanning your device khổng lồ keep it safe, you can also set when và how often the scans occur.

Schedule a scan

Select the Start button, type schedule tasks in the Search box, & in the danh sách of results, select Task Scheduler.

In the left pane, select the arrow (>) next to Task Scheduler Library to lớn expand it, do the same with > Windows, and then scroll down & select the Windows Defender thư mục.

In the top-center pane, select Windows Defender Scheduled Scan. (Point to lớn the choices to lớn see the full names.)

In the Actions pane on the right, scroll down & then select Properties.

In the window that opens, select the Triggers tab, và then select New.

Set your preferred time & frequency, & then select OK.

Đánh Giá the schedule and select OK.

Note: Because of streamlined security, this process isn"t available if you"re running Windows 10 or 11 in S mode.

Turn Defender Antivirut real-time protection on or off

Sometimes you may need to lớn briefly stop running real-time protection. While real-time protection is off, files you open or download won"t be scanned for threats. However, real-time protection will soon turn on automatically again lớn protect your device.

Turn real-time protection off temporarily

Switch the Real-time protection setting to Off và choose Yes to verify.

Note: Because of streamlined security, this process isn"t available if you"re running Windows 10 or 11 in S mode.

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