Pc scan & repair by reimage là gì

If you think your PC is infected with some kind of malware or you just want to bởi vì a scan as part of a digital cleanup, Windows has a built-in security tool that can help you on your way — no third-các buổi party software khổng lồ install or pay for. It’s called Windows Security.

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Once upon a time, Windows Security was called Windows Defender Security Center, but the tiện ích is largely similar. Searching “Windows Defender” in the Start thực đơn will bring up Windows Security, và even now, Microsoft often refers khổng lồ its actual antivirut scanning as Windows Defender.

Microsoft’s built-in anti-malware software used to lớn be thought of as totally worthless, but these days, it can hang with big names lượt thích Kaspersky & Avast in independent tests (blocking 99.7% of threats). Microsoft has also been pushing security with Windows 11, even going so far as lớn confusingly lock out people with older computers that don’t have certain hardware. But when it comes to lớn good old-fashioned software security, Windows 11 is relatively simple.

To open it, you can simply type “Windows Security” inkhổng lồ the Start thực đơn search. You can also get to it by going khổng lồ “Settings” > “Privacy & Security” > “Windows Security,” which will give sầu you a quiông xã overview of your system’s status. You can then click the “xuất hiện Windows Security” button khổng lồ get access khổng lồ the full phầm mềm.

After you’ve sầu got it open, here’s some of what you can do:

Run a malware scan on Windows 11

By default, Windows’ built-in security will run in the background và attempt to immediately block any malicious files that make their way lớn your computer. However, if you want lớn vì periodic spot checks, you can manually run a scan.

Windows Security’s built-in virus and threat protection feature. To do this, go khổng lồ “Windows Security” > “Virus & threat protection,” & cliông xã the “Quick scan” button. If you want lớn vì a more thorough scan, which will take longer but will check all your files and running programs, you can instead clichồng the “Scan options” button, và choose “Full scan.”

If Windows finds malware during the scan, you can click the “Start actions” button lớn begin the process of removing the virus(es) from your computer.

Clicking Start actions will remove sầu malware from your computer. If the scan doesn’t turn up anything, you’ll just see a report about how long the scan took, how many files were scanned, & when the scan took place.

A clean bill of health from Windows Security.

Keep Windows security up lớn date

If you want khổng lồ make sure Windows is always scanning for viruses in the background, you can go khổng lồ “Windows Security” > “Virus và threat protection” > “Virus and threat protection settings.” Cliông xã on “Manage settings” & make sure the “Real-time protection” option is toggled on.

To make sure your computer is using the lathử nghiệm antivirut definitions, you can go khổng lồ “Windows Security” > “Virus & threat protection” > “Virus và threat protection settings.” Cliông xã on “Manage settings” & make sure “Cloud-delivered protection” is toggled on.

Windows 11 generally does its best to lớn keep itself updated, but lớn manually check, you can go to “Settings” > “Windows update,” which can be found both at the bottom left & top right. From there, you can clichồng the “Cheông chồng for updates” button. You can also type “kiểm tra for updates” in the Start menu tìm kiếm bar khổng lồ be taken directly to lớn the “Windows Update” screen.

You can make sure your computer is up-to-date in Settings.

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If you’ve installed a lot of apps from the Microsoft Store, you can update those as well by opening the Microsoft Store, going khổng lồ “Library” (on the bottom left of the window), then clicking the “Get Updates” button.

If you still have Windows 10

If you’re running the latest version of Windows 10, the process for running a virut scan will be largely the same as on Windows 11. On some older versions of Windows 10, you’ll use the Windows Defender Security Center application instead, but the process will be much the same after you open the tiện ích.

What are the signs my PC is infected?

Malware comes in many shapes and forms, but there are some common things it may do khổng lồ your computer. If you notice that your search engine, browser homepage, or even desktop wallpaper have changed without you doing anything, it may be time lớn run a scan as described above sầu. Other symptoms could be your computer running hotter or slower than usual or seeing popups or notifications that you haven’t seen before.

Google has a great video clip describing some of the comtháng symptoms of malware.

If Windows detects a threat

If you get a notification from the Microsoft Security phầm mềm saying that it’s detected a threat, it’s likely that the problem has already been dealt with. However, it is worth double-checking the notification — some malware (especially malicious website ads) will pretkết thúc to lớn be an antivi khuẩn notification to lớn get you khổng lồ click on them.

Windows Security notifications will look lượt thích the image shown below & will appear on the top right corner of your screen. After they disappear, they’ll be shown on the notification screen, which you can view by clicking on the cloông chồng in your taskbar.

An example of the notification you’ll get if Windows Security finds a suspicious tệp tin.

Whitelisting a file

While anti-malware software tries its best lớn only flag the bad files và leave the good ones, sometimes it will get it wrong. If you’re very sure that Windows has made a mistake & deleted a tệp tin that it shouldn’t have sầu, you can retrieve it.

Before you vày so, it’s worth noting that just because you trust the person who sent you a file does not mean that the file is safe. There is some malware that is able lớn hijaông xã people’s emails và skết thúc copies lớn everyone in their contacts. If you receive a suspicious tệp tin from someone you trust, it’s a good idea lớn ask them about it before trying khổng lồ open it.

The Protection history screen will show you the incidents Windows Security has monitored.
To view & restore an incorrectly flagged tệp tin, go lớn “Windows Security” > “Virus và threat protection” > “Protection history.” There you’ll find any threats that Windows Security found, along with their severity cấp độ. To restore a file (which, again, you should be very careful before doing), cliông chồng on the entry, then cliông chồng the “Actions” button to lớn get access to lớn the “Allow” button.

The Protection history screen can give you details about a detected virus, such as where it was found, & what type of malware it is. What happens after you allow the file depends on how it was dealternative text with. If its status is “Quarantined,” allowing it will put it bachồng on your computer. If its status is “Removed,” you’ll have sầu lớn tải về it again, but Microsoft Security won’t stop you.

You can view a list of the detected files you’ve sầu allowed by going khổng lồ “Windows Security” > “Virus và threat protection” > “Allowed threats.” If you’ve decided they are indeed a threat, you can re-delete them by clicking on them, then clicking the “Don’t allow” button.

When things get nasty

Sometimes there are viruses or pieces of malware that fight baông xã when you try khổng lồ remove sầu them. To help giảm giá khuyến mãi with this, Windows has a sort of extra-strength version of its antivirut scan. To run it, go lớn “Windows Security” > “Virus và threat protection” > “Scan options,” & select “Microsoft Defender Offline scan.” After clicking the “Scan now” button, your computer will restart inkhổng lồ a special mode to lớn bởi a scan. Once it’s done, your computer will restart again, bringing you back lớn Windows.

If your computer still shows signs of being infected, some of us here at The Verge recommkết thúc the free version of Malwarebytes, which has saved our (& our relatives’) machines more than a few times. (It’s a good idea khổng lồ have sầu Malwarebytes already on your computer since some malware can bloông chồng you from installing any additional security apps.)

If your PC is still locked up, or you’re suddenly getting notifications that you need to lớn send somebody money to lớn unloông chồng it, it may be time lớn tương tác an IT professional.

Third-các buổi party anti-malware apps

While Windows Security should bởi a good job at protecting your computer from viruses, malware, & other nasty files, there are still things it can’t vày — for instance, even with Windows 11, the built-in tools won’t protect you from tin nhắn phishing scams or from scam ads in your website browser.

If you’re looking to lớn step up your game from the basic Windows Security, you might want to check out anti-malware suites, such as McAfee, Norton 360, Kaspersky or Bitdefender. Searching out a few reviews will give sầu you a good idea of what you need (and what you don’t — looking at you, programs that come with crypto lớn miners).

If you’ve heard about the dangers of running multiple anti-malware systems, don’t worry; Microsoft says its built-in solution will automatically turn off if it detects that there’s another antivirut installed và activated. If you uninstall the other anti-malware tiện ích, Microsoft’s should turn back on automatically.