Not all users install an antivirus on their computer or laptop. Some are lazy, others don't see the need for it. And when suddenly the PC starts behaving strangely (buggy and slow or ads appear in the browser), you can simply check your computer for viruses online and for free. Luckily, there are plenty of options today.
Below are the top 7 antiviruses that can scan for viruses online. True, it will not work to check the computer without downloading the installer. Virus scanning is done online, but antiviruses need access to your files. Therefore, some of them are installed as a module for the browser, and some - as a small utility.
Kaspersky Security Scan is a powerful online virus scanner
A full-fledged antivirus is well known in Russia, and its "younger brother" is also popular.
The program runs in the "cloud", so you can quickly scan any PC or laptop for viruses online with Kaspersky.
Its main advantages:
- does not slow down Windows (which cannot be said about the full-fledged Kaspersky antivirus, which “eats” a lot of resources during the scan);
- does not conflict with other antiviruses installed on the computer;
- does not remove the viruses found, but only reports them (on the one hand, this is a plus, but on the other, you will have to remove them manually);
- produces a detailed report.
- Download the installer file from this link http://www.kaspersky.com/free-virus-scan.
- Run the program.
- Wait for the end of the check.
After that, you will only have to remove the viruses (if they were found).
BitDefender QuickScan - quick online PC virus scan
Another way to clean your computer from viruses online is using BitDefender QuickScan. It is considered to be very effective and enjoys great success abroad. Approximately, as we have Kaspersky.
Cleaning your computer from viruses online is also easy. You only need:
- Follow this link http://quickscan.bitdefender.com/ .
- Click on "Scan Now".
- Install a browser module through which the antivirus will gain access to your folders and files.
- Wait for the end of the check.
The main advantage of BitDefender is a quick online virus scan. On average, it takes 1-2 minutes. On the one hand, this is cool, but on the other hand, what will he have time to scan in such a short time?
Most likely, the online scanner checks the main list of the most common threats: system files, startup - i.e. those places where viruses mostly "live". The developers themselves say that online virus scanning of a computer is carried out in the cloud (on their servers), which is why it is so fast.
ESET Online Scanner - efficient computer virus scan
The next way is using the free ESET product from the NOD32 developers. To start checking, follow this link.
It is recommended to scan the PC through Internet Explorer - in this case, the scan will be performed in the browser window. When using Chrome, Firefox or Opera, the user will have to download a small file, and the PC analysis will be performed in a separate program.
After downloading and running the file, you need to set the settings. For example, enable scanning of archives and potentially dangerous programs. You can also uncheck the "Remove threats" box so that the antivirus does not accidentally delete important files that it thinks are infected. Then click the "Start" button.
ESET Online Scanner will update the databases, after which an online scan of the PC for viruses will begin.
- thorough system scan (takes 40 minutes on average - depends on your Internet speed and HDD size);
- detects any threats;
- can detect malware, incl. in the register;
- performs heuristic analysis;
- generates a complete report on the work performed.
Another plus is that the online scanner is automatically deleted after the scan is completed. That is, no files will remain after it.
Thus, ESET antivirus is perhaps one of the best ways to clean your computer from viruses online. Its only drawback is the need for installation.
Panda Cloud Cleaner - online scan of a flash drive for viruses
There are 4 versions to choose from:
- standard;
- portable (does not require installation);
- to scan a USB flash drive;
- in ISO format (rescue boot disk for PC virus check that won't turn on).
Which version to choose, decide for yourself. For example, if you want to check a flash drive for viruses online, then download the third installer on the developers' website.
Main advantages:
- quick check (on average - 20-30 minutes);
- detection of common threats;
- effective online virus cleaning.
As in the previous case, Panda also "self-destructs" after successfully checking and treating viruses. That is, it is automatically deleted and leaves no files behind.
F-Secure Online Scanner - virus and spyware treatment
Another great antivirus that can scan your computer for viruses online. To start testing, go to the developers website and click on the "Run" button. After downloading and running the installer, a new window will open, in which the laptop or PC will be scanned.
The main advantages of this antivirus:
- quick scan - takes an average of 10-15 minutes;
- effective treatment of viruses and spyware utilities;
- works even with antivirus installed on your PC.
Before starting the test, it is advisable to turn off "heavy" programs. This will help speed up the scanning process.
VirusTotal
All previous options had one thing in common - the need to download the installer. In this case, you can scan your computer for viruses online without installing any programs.
VirusTotal is a service from Google that can check any files on your PC. It can also scan websites for malicious utilities. Using the service is very simple:
- Follow this link.
- Specify the path to the file you want to scan, or the URL of any site.
- Click the "Check" button.
Wait for the verification to be completed, and then see the report.
You won't be able to check all the documents on your computer through VirusTotal. It can scan sites and files separately. This option is suitable for those who, for example, have downloaded some program and want to make sure that it is free of viruses before installation. For such cases, VirusTotal is best suited, because it does not need to be downloaded.
Dr.Web - effective file check for viruses
And the last way is through Doctor Web. It has an excellent service with which you can check individual files. For this:
- Go to this site http://online.drweb.com/.
- Click Browse and navigate to the file you want to scan.
- Click the "Check!" button.
In this case, you can scan your computer for viruses online without installing Dr. Web. But, like VirusTotal, Doctor Web can scan only one file at a time.
A few words in conclusion
It sounds strange, but you cannot completely scan a laptop or computer and remove viruses online. The first 5 antiviruses require a small file to be installed. The question arises: isn't it easier to install a full version of the same Kaspersky or BitDefender? They have more features, plus provide real-time PC protection. In addition, many popular antiviruses have free versions.
The last 2 options are VirusTotal and Dr. Web - do not require installation, but check one file at a time. This is also not very convenient.
By the way, a computer or laptop can be infected not with viruses, but with malware. As a result, ads appear in the browser, third-party pages of unknown sites open, etc. In this case, antiviruses will not help, special software is required here.
An overview of the Kaspersky Online service, how to check a site or URL for viruses, how to find out if a link is infected or a page is "fake".
You can catch a virus by going to a regular web page. If you do not have an antivirus installed, the probability of infecting your phone by going to a dubious resource is quite high.
However, it is not necessary to load your phone with heavy antivirus. For a one-time check, a reliable service for checking links is suitable. One of them is Kaspersky VirusDesk. So what is this virus scanner useful for?
Key features of VirusDesk feature:
- Kaspersky Online scanner does not require software installation or license purchase;
- The service is free for and files;
- The size of the uploaded file for online verification can be up to 50 MB;
- All anti-virus databases are up to date, no need to download/update them yourself. The developers of the service claim that the online scanner uses the same databases as related products from Kaspersky;
- VirusDesk works on a computer / phone / tablet - through a browser window;
- The user independently decides what to do with the files: delete or leave. Either way, VirusDesk will provide recommendations;
- The online version of the antivirus does not require user permissions. Accordingly, VirusDesk will not be able to delete files or place them in quarantine. All file operations are performed by the user of the mobile device / PC.
How to check the link with a virus scanner Kaspersky Online
Video instruction:
To check a website for viruses, follow these steps:
- We go to the website of the Kaspersky VirusDesk service.
- Paste the link from the clipboard into the special field. If you need to check the file, click on the paperclip icon and upload a file no larger than 50 MB.
- Click the "Check" button and wait for the results of the analysis.
Review statuses
When online anti-virus finds suspicious (or infected) files and sites, detailed information about the type of threat is available to the user. We will explain what the scan statuses of Kaspersky VirusDesk mean.
Security statuses for links:
- bad reputation: most often displayed on phishing sites, the transition to which is undesirable. VirusDesk also recognizes fake sites in the Kaspersky virus database;
- good: URLs with a good reputation can be visited without risk to the mobile device;
- unknown reputation: if the reputation of the link is not defined, it means that there is no information about it in Kaspersky Security Network. In this case, you can check the link through other online scanners.
Security statuses for files:
- the file is not infected: this means that the file can be stored and transferred to other users, it does not pose a security threat;
- the file is infected: this file should be deleted immediately from the device on which it is located; otherwise, the virus will harm the operating system and / or user files located on the phone or computer;
- the file is suspicious: a questionable status that may mean that the file is infected, although in some cases it may not be a threat. Unsafe files often include various keygens and cracks, despite their harmlessness.
How else to check questionable links?
- Virustotal is a free online antivirus to check links for marvari, trojans and phishing. The scanner uses Ad Aware, Avast, Avira and many others. In addition, VIrustotal provides advanced reporting on checked links and sites (domains).
- The Doctor Web online scanner is no different from other web crawlers, the only thing that is used for scanning is the bases of the usual Doctor Web. To regularly check websites for viruses, you can install the Dr.Web Link Checker browser extension.
- We advise you to try the mobile edition of Kaspersky antivirus. It does not require a lot of resources on the phone and copes with most virus threats.
The Virus Removal Tool is one of the most effective tools for detecting and removing almost any virus program. Its main advantage is that it does not require installation on a computer. It is enough to download and run it, and then it will do everything itself.
Pros and Cons of Virus Removal Tool
This utility has a lot of advantages, including:
- The program is distributed on the Internet for free.
- The utility has a nice design and is very easy to use. With its help, even the initial PC user will be able to conduct a complete system scan.
- The Virus Removal Tool does not conflict with those installed on the computer, so you can leave them on during the scan.
- The utility uses signature and heuristic analysis in its work, which allows you to detect new and unknown viruses.
- The program can disinfect infected files.
- If the infected computer cannot start in normal mode, this utility can be run in safe mode.
- After the program collects all the necessary information about the installed OS, it will create scripts that can be used to carry out manual disinfection.
But in addition to a wide list of advantages, like any program, Virus Removal Tool has a number of disadvantages:
- The program works online, protecting the system, and scans and cures only on demand. After a single use of the program, it is uninstalled.
- The utility does not know how to update databases, therefore, before a new check, the old database must be deleted and a new one loaded.
- Because the utility is free, there is no additional service in it. For example, a user will not be able to ask a question to Kaspersky Lab if he suddenly encounters some difficulties. Questions can only be answered by other users on the Kaspersky forums.
Performing a system check
The Virus Removal Tool can be downloaded from the official website at the link below. After downloading and unpacking the archive, you must agree to the license agreement and click the "Get Started" button. Now the antivirus utility is ready to go.
The program has already set the recommended parameters for the first system check. To start the scan, you just need to click "Start Scan". The utility will check all critical areas, and then you can scan the hard drive. To do this, click on the gear icon, and in the "Scan area" column, check all the boxes. If your computer has a large amount of data, the scan may take quite a long time. In order not to follow the long process, in the "Actions" menu, you can check the boxes "Treatment" and "Delete if treatment is not possible".
It should be noted that if unlicensed software is installed on the computer, then the program can recognize them as a threat to the system, so it is recommended not to check the "Delete" box if there is unlicensed software on the PC. When all settings are set, you can go to the "Automatic Check" section and start the process. Upon completion of the check, it will be possible to view the monitoring results from the "Reports" section.
Not all people resort to using antivirus on their PC or laptop. Automatic computer scanning consumes quite a lot of system resources and often interferes with comfortable work. And if suddenly the computer starts behaving suspiciously, then you can analyze it for problems online. Fortunately, there are enough services for such a check today.
Below we will consider 5 options for analyzing the system. True, it will not work to carry out this operation without loading a small auxiliary program. Scanning is carried out online, but antiviruses need access to files, and it is rather difficult to do this through a browser window.
Services that allow checking can be divided into two types - these are system and file scanners. The former check the computer completely, the latter are able to analyze only one file uploaded to the site by the user. From simple anti-virus applications, online services differ in the size of the installation package, and do not have the ability to “cure” or remove infected objects.
Method 1: McAfee Security Scan Plus
This scanner is a quick and easy way to check, which will analyze your PC for free in a few minutes and assess the security of the system. It does not have the function of removing harmful programs, but only notifies about the detection of viruses. To run a computer scan with it, you will need:
The program will start scanning and then display the results. Button click "Fix Now" will redirect you to the purchase page for the full version of the antivirus.
Method 2: Dr.Web Online Scanner
This is a good service with which you can check the link or individual files.
In the first tab, you are given the option to scan the link for viruses. Paste the address into the text line and click " Check".
The service will start the analysis, after which it will give the results.
In the second tab, you can upload your file for verification.
- Select it with the button "Choose file".
- Click "Check".
Dr.Web will scan and display the results.
Method 3: Kaspersky Security Scan
Kaspersky Anti-Virus is capable of quickly analyzing a computer, the full version of which is quite well known in our country, and its online service is also popular.
In the next window, you can see additional information about the problems found by clicking on the inscription "More". And if you use the button "How to Fix It" the application will redirect you to its website, where it will offer to install the full version of the antivirus.
Method 4: ESET Online Scanner
The next option to check your PC for viruses online is the free ESET service from the developers of the famous NOD32. The main advantage of this service is a thorough scan, which can take about two hours or more, depending on the number of files on your computer. The online scanner is completely deleted after the end of the work and does not leave behind any files.
ESET Scanner will update its databases and start analyzing the PC, after which the program will return the results.
Method 5: VirusTotal
VirusTotal is a service from Google that can check links and files uploaded to it. This method is suitable for cases when, for example, you have downloaded a program and want to make sure that it does not contain viruses. The service can simultaneously analyze a file using 64 (at the moment) databases of other anti-virus tools.
- To check the file through this service, select it for download by clicking on the button of the same name.
- Next click "Check".
The service will start the analysis and give results for each of the 64 services.
To scan a link, do the following:
- Enter the address in the text field and click on the button "Enter URL".
- Next click "Check".
The service will analyze the address and show the results of the verification.
