How TO remove a computer virus?
Here are a few things you can try to
remove a computer virus:
Keep your antivirus program up to
date. If you have already installed an antivirus program on your computer, it's
important that you keep it up to date. Because new viruses are being written
all the time, most antivirus programs are updated frequently. Check your
antivirus program's documentation or visit their website to learn how to
receive updates. Be aware that some viruses block common antivirus websites, making
it so you cannot go to the website to download antivirus updates. If this
happens, check with your antivirus vendor to see if they have a disc you can
use to install the latest updates. It might be possible for you to create this
disc on a computer that is not infected (for example, on a friend's computer).
Use an online scanner. If you don't
have antivirus software installed, visit the Windows Security Software Providers website for more information about security and virus
prevention. Some of the partner sites offer free online scanners which will
search your computer for the latest viruses. These scanners will not protect
you from getting a virus, but they can help find and remove viruses your
computer already has.
Use the Malicious Software Removal
Tool. Microsoft offers the Malicious Software Removal Tool, which is updated
once a month. Visit the Malicious Software Removal Tool website to install the tool and learn more about it. The
tool scans your computer for most new viruses and malicious software. After you
run the tool, you will get a report that describes any malicious software found
on your computer and lists all the viruses it scanned for.
Stop a runaway virus. Viruses are
often created specifically to take control of your computer and send copies of
themselves from your computer to other computers. You can usually tell this is
happening if your computer is performing slowly and accessing the network more
frequently than normal. If this is happening, you should disconnect from the
Internet and network (if you're on one). If you are connected to the Internet
through a physical connection, disconnect the network or phone cable from your
computer. If you're connected to the Internet through a wireless connection on
a laptop, turn off the wireless adapter on the computer (either by turning off
a switch or removing your wireless adapter card). Once your computer is
disconnected from the Internet, run your antivirus software (from a disc or
software on your computer) to remove the virus.
Manually remove viruses. Sometimes a
virus must be removed manually. This is often a technical process and should
only be attempted by computer users who have experience with the Windows
registry and who know how to view and delete system and program files in
Windows.
The first step is to identify the
virus. Run your antivirus software to identify the name of the virus. If you
don't have an antivirus program, or if your program does not detect the virus,
you can still identify the virus by looking for clues about how it behaves.
Write down the text in any messages displayed by the virus or, if you received
the virus in e‑mail, write down the subject line or name of the file attached
to the message. Search the antivirus vendor's website for references to those
specific things you wrote down to try to find the name of the virus and
instructions for how to remove it.
My virus is gone. Now what? Once a
virus is removed, you might have to reinstall some software, or restore lost
information. Doing regular backups can go a long way toward easing the pain of
a virus attack. If you haven't kept backups, start now. To learn how to help
prevent future attacks, see how can I help protect my computer from viruses?
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