are many preventive steps you can take to help protect your PC from viruses and
Use an antimalware app.
Installing an antimalware app and keeping it up to date can help defend your PC
against viruses and other malware (malicious
software). Antimalware apps scan for viruses, spyware, and other malware trying
to get into your email, operating system, or files. New threats can appear
daily, so check the antimalware manufacturer's website frequently for updates.
Windows Defender is free antimalware software included with Windows, and
you can update it automatically through Windows Update.
Don't open email messages from unfamiliar senders, or email attachments
that you don't recognize. Many viruses are
attached to email messages and will spread as soon as you open the attachment.
It's best not to open any attachment unless it's something you're expecting.
Use a pop-up blocker with your Internet browser. Pop-up windows are small browser windows that appear on top of the
website you're viewing. Although most are created by advertisers, they can also
contain malicious or unsafe code. A pop-up blocker can prevent some or all of
these windows from appearing.
Pop-up Blocker in Windows Internet Explorer is turned on by
If you're using Internet Explorer, make sure SmartScreen Filter is
turned on. SmartScreen Filter in
Internet Explorer helps protect you from phishing and malware attacks by
warning you if a website or download location has been reported as unsafe.
Pay attention to Windows SmartScreen notifications. Be cautious about running unrecognized apps downloaded from the
Internet. Unrecognized apps are more likely to be unsafe. When you download and
run an app from the Internet, SmartScreen uses info about the app's reputation
to warn you if the app isn't well-known and might be malicious.
Keep Windows updated.
Periodically, Microsoft releases special security updates that can help protect
your PC. These updates can help prevent viruses and other malware attacks by
closing possible security holes.
You can turn on Windows Update to make sure that Windows receives these
Use a firewall. Windows Firewall or any
other firewall app can help notify you about suspicious activity if a virus or
worm tries to connect to your PC. It can also block viruses, worms, and hackers
from trying to download potentially harmful apps to your PC.
Use your Internet browser's privacy settings. Some websites might try to use your personal info for targeted
advertising, fraud, and identity theft.
If you're using Internet Explorer, you can adjust your privacy
settings or restore the default settings whenever you want.
Make sure User Account Control (UAC) is turned on. When changes are going to be made to your PC that require
administrator-level permission, UAC notifies you and gives you the chance to
approve the change. UAC can help keep viruses from making unwanted changes. To
open UAC, swipe in from the right edge of the screen, and then tap Search. (If you're
using a mouse, point to the upper-right corner of the screen, move the mouse
pointer down, and then click Search.)
in the search box, and then tap or click Change User Account Control settings.
Clear your Internet cache and your browsing history. Most browsers store info about the websites you visit and the info that
you provide, like your name and address. While it can be helpful to have these
details stored on your PC, there are times when you might want to delete some
or all of them—for example, when you're using a public PC and don't want to
leave personal info behind.