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Install Malwarebytes Anti−Malware
Malwarebytes Anti-Malware (MBAM) is a free computer virus removal tool (that offers a premium plan, too). It is an anti-malware software that scans for, identifies the symptoms of computer virus (or malicious software), and removes different types of malicious software (adware, spyware, trojans). Also, it offers an easy-to-use interface and a short wait time for scans.
Download it from the official website, install it on your computer, click of the Scan Now button and wait for the treats to be eliminated.
MBAM also has a premium version which offers a full-time background 'Malware Protection' and Malicious Website Protection, and a shorter wait time for scans, which is not the case with the free version.
Note: Although MBAM automatically updates its database, you can also check for updates manually by clicking Update. For best results, it is recommended to install it and scan for viruses with it while you are in safe mode. If you don't know how to enter the safe mode, click here to learn more.
The number of threats to your computer and mobile device is increasing every day. Many developers work hard to find weak spots (bugs) in the operating systems and create new viruses so that they can steal personal data from millions of users.
To be on the safe side, and as a good mobile device/computer virus protection apply the recently released updates once you receive a notification that there is one. DO NOT DOWNLOAD UPDATES from third-party websites because they might have been modified to harm you.
Keep the installed programs/applications up to date
Another way for a virus to infect your computer or mobile device is through an outdated software. Many people just install pieces of software, without checking for updates from time to time. An outdated software can be a way for hackers to gain access to your computer or mobile device as new types of computer virus are "born" on a daily basis.
Disable the hide extensions for known file types option
The file extension (or file name extension) are the letters shown immediately after the last period of the file name (e.g software.EXE; picture.JPG). Many users think that JPG files, MP3 and other audio or visual file extensions cannot be hosts of viruses and open them without thinking. However, hackers take advantage of this fact and name their malicious files in a similar manner (e.g. picture.jpg) and count on the fact that Windows will not show the true file extension (the full name of the above-stated example would be picture.jpg.EXE)
Windows hides the file extensions by default (it hides .exe; .jpg and etc.) and the virus looks as a harmless file, but once you open it, it infects your computer.
The best way for you to be 100% sure about what you open (a picture, software and etc.), and "the best computer virus protection" is to see the file extensions.
To enable this option follow the steps below:
Go to (My) Computer -> Click Tools (Press the ALT key on your keyboard if you don't see Tools) -> Select Folder Options
Select the View tab -> Uncheck (Untick) the checkbox next to Hide extensions for known file types -> Apply the changes -> Press OK
Note: If you use Windows 10, click File and select Change folder and search options in order to access the Folder Options window
To define computer spyware: it is a piece of software designed to steal personal data (especially credit card numbers, account passwords etc.), without your knowledge.
How do you get spyware on your computer? There are many ways for spywares to invade your computer, such as: visiting websites like "Enter our site and win an Iphone" or "Click here to download ..."(any software which is not free). This means that spywares are harmful only if you have access to the internet. Once they invade your computer they store everything you write and periodically send it to the creator of the spyware who most often "unloads" your credit card.
How to detect spyware on computer? The best way to detect and fight against them is to install an antivirus, antimalware or an antispyware software. Malwarebytes' Anti-Malware (for Windows and Mac OS) and SuperAntiSpyware (for Windows only) are known to protect many computers from being invaded by spywares. Install one of them and run periodic scans.
Note: If you use a computer and you have sensitive data stored on it, it would be better to buy the full version of one of these softwares (also called Internet security). It will run full scans in the background and the wait time will be shorter.
Scan pieces of software and URLs using VirusTotal.com
VirusTotal is a website that provides free check-up for files and websites for viruses. It uses 55 different antivirus products and 61 online scan engines to check for viruses that the computer's or the mobile device's antivirus may have missed. This is a good way to prevent malwares from invading your computer and an answer to the "how to get rid of a computer virus (or of a mobile device one)" question.
Upload a file (up to 128 MB) or copy a URL you find suspicious. Based on analyses of all the softwares you will be informed whether the file or the URL is malicious and spare you from troubles.
Note: There are some files which may be recognised as viruses by SOME of the antiviruses, and they are actually not. Those files are known as false positives. So if a file is treated as a virus by small number of antiviruses (e.g 2 out of 10), then it is most likely a false positive file.
Phishing email messages, links, or phone calls are another way for a virus to find its way to your computer. You are asked to provide your credit card number, log in to Facebook (or other social network) through the email and etc.
The best way to protect yourself from phishing emails, and the best mobile device or computer virus protection in general, is to avoid opening them and READ THE TITLE CAREFULLY. So, if you notice an email that has a suspicious title and is sent from a suspicious email address, don't open it. Usually suspicious mails are directed to the Junk folder and valid emails are shown in the regular Inbox folder. However, there are some cases where valid emails are shown in the junk folder.
Also, ignore emails that inform you that you've won a contest or emails from a stranger asking for assistance with their inheritance.
Note: If you are not sure how to recognise a phishing email, read this tutorial. If you are still not able to recognise a phishing email, consider installing an antivirus software which will delete phishing emails automatically.
If you wonder how to protect computer from virus, you may take advantage of the Firewall. The OS (Operating System) Firewall is designed to protect you from the attacks of hackers. It can also stop your computer from sending malicious software to other computers. That is why, it is very important to have it activated all the time. By activating the firewall you will minimize the chances for hackers to find a bug in your computer.
To activate it:
Start -> Control Panel -> Windows Firewall (or type 'Firewall' in the search box) -> click Turn Windows Firewall on or off in the left pane -> Click Turn on Windows Firewall under each network location that you want to help protect, and apply the changes.
Os X v10.5
Apple menu -> System Preferences -> Security -> Firewall -> Choose what mode you would like the Firewall to use
OS X v10.6 and later
Apple menu -> System Preferences -> Security (or Security & Privacy) -> Click the Firewall tab -> Unlock the pane by clicking the lock in the lower-left corner and enter the administrator username and password -> Turn On Firewall (or Start) -> Click Advanced to customize the firewall configuration
Note: Some antiviruses have their own Firewall that will substitute the default Windows Firewall once they are installed (You will be notified by the Antivirus software). Do not enable the default Windows Firewall in those situations.
The question does my computer have malware is sometimes difficult to answer, because malwares are available in all shapes and sizes. Junkware Removal Tool is a utility that searches for and removes common adwares, toolbars, and potentially unwanted programs (PUPs) from your computer. A common tactic among freeware publishers is to offer their products for free, but "equip" them with PUPs in order to earn revenue. This tool will help you remove these types of programs.
Click here to download it and once you've had it downloaded, install it.
Once you run the Junkware Removal Tool, it will scan your computer and remove every trace of these programs including their files, registry keys, and folders stored in your computer quickly and efficiently.
Avoid suspicious ads (advertisements) on websites
If you wonder how to protect computer from virus or how to protect your mobile device, you should avoid clicking on suspicious ads. Unfortunately, they are on every second website you visit, waiting for you to click them. They offer you money, free mobile devices (usually iPhones), vacations and countless stuff. But the only thing you actually get for free is a malware, and an empty credit card.
The best way to protect yourself from ads is to avoid opening them. Remember that there is no such thing as free lunch. Also, consider installing a good antivirus software that will protect you from suspicious ads.