Windows 10 and 11 include Windows Security, which provides the latest antivirus 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 to lớn help keep your device safe và protect it from threats.
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Tip: If you"re a grumpygourmetusa.com 365 Family or Personal subscriber you get grumpygourmetusa.com Defender, our advanced security software for Windows, Mac, iOS, and Android, as part of your subscription. Learn more at Getting started with grumpygourmetusa.com Defender.

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 và threat protection area has fewer options. But don"t worry—the built-in security of this mode automatically prevents viruses và 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 khổng lồ Windows & includes an antivirus program called grumpygourmetusa.com Defender Antivirut. (In early versions of Windows 10, Windows Security is called Windows Defender Security Center).
If you have another antivirut app installed và turned on, grumpygourmetusa.com Defender Antivirut will turn off automatically. If you uninstall the other tiện ích, grumpygourmetusa.com Defender Antivirus will turn baông chồng on automatically.
Underst& & customize Windows Security features
Windows Security is your home page to lớn 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 & Security > Windows Security or select the button below.xuất hiện Windows Security settings
Status icons indicate your màn chơi 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
If you"re worried about a specific tệp tin or folder on your local device, you can right-clichồng the tệp tin or folder in File Explorer, then select Scan with grumpygourmetusa.com Defender.
Tip: On Windows 11 you may have sầu to lớn select Show more options after you right-click to lớn see the option khổng lồ scan the tệp tin or folder.
If you suspect there"s malware or a vi khuẩn on your device, you should immediately run a quiông chồng scan.
Run a quick scan in Windows Security
Note: Because of streamlined security, this isn"t available if you"re running Windows 10 or 11 in S mode.
Under Current threats, select Quiông chồng 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 and then Virus & threat protection.
Under Current threats, select Scan options (or in early versions of Windows 10, under Threat history, select Run a new advanced scan).
Select one of the scan options:
Full scan (check all files & programs currently on your device)
Custom scan (scan specific files or folders)
Select Scan now.
Learn more about running an advanced scan
Schedule your own scan
Even though Windows Security is regularly scanning your device to keep it safe, you can also mix when và how often the scans occur.
Note: Because of streamlined security, this isn"t available if you"re running Windows 10 or 11 in S mode.
Schedule a scan
Select the Start button, type schedule tasks in the Search box, & in the các mục of results, select Task Scheduler.
In the left pane, select the arrow (>) next khổng lồ Task Scheduler Library lớn exp& it, bởi the same with grumpygourmetusa.com > Windows, and then scroll down và select the Windows Defender folder.
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 and then select Properties.
In the window that opens, select the Triggers tab, và then select New.
Set your preferred time và frequency, & then select OK.
Đánh Giá the schedule and select OK.
Turn grumpygourmetusa.com Defender Antivirus real-time protection on or off
Sometimes you may need to 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 to protect your device.
Turn real-time protection off temporarily
Note: Because of streamlined security, this isn"t available if you"re running Windows 10 or 11 in S mode.