One-time antiviruses for quickly scanning your computer. We check and completely clean the flash drive from viruses. Is it possible to install an antivirus on a flash drive?

When your computer is infected with viruses to such an extent that operating system it doesn’t even start anymore, there is only one way out - SCAN IT WHEN LOADING.

That is, we need to scan it even before the operating system boots, find all the malicious programs and remove them.

Then reboot our PC and again enjoy its working condition. The fact is that when I first encountered a problem when the computer was infected with a virus and the operating system refused to start, I was simply horrified. Usually, if there is a virus on your computer, you simply find it using an antivirus program and remove it. And then the system did not boot at all. Simply, after turning on the computer, a window appeared asking how to send an SMS as usual, enter a code, and so on. In short another!

DIVORCE FOR MONEY What did I decide to do right away? I immediately came to the conclusion that it was necessary. I did this and was horrified when the virus again prevented the system from starting. How so? What to do if?

REINSTALLING THE SYSTEM DID NOT HELP Salvation can be scanning your computer for viruses

when loading it! It’s great that I remembered about this, but I had never used it before.

We need to burn an image of an antivirus program to a disk or flash drive. Such images can be found on the official websites of antivirus developers such as Kaspersky, Doctor Web, and so on.

In this lesson I will tell you how to take an image of Kaspersky antivirus, write it to a USB flash drive and scan all disks on your computer, removing all viruses. So now we'll start creating bootable flash drive.

with antivirus

For this we need:

1. Formatted USB flash drive.

2. Image of Kaspersky antivirus

3. A program for writing an image to a flash drive.

I hope you already have a flash drive, all you have to do is download the necessary programs.

First, let's look at the program. Double-click on the downloaded file with the left mouse button.

Then in the window that opens, specify the folder to unpack the program, or leave it as default, then it will be unpacked in the same place where it is. Click the "Install" button

After unpacking, the program will automatically start. Click the “Browse” button. We indicate on the computer where it is located ISO image

After the path to the image is specified, you need select USB drive, onto which Kaspersky anti-virus will be recorded, and click the “Start” button.

Our flash drive must be formatted for file system FAT or FAT32. Therefore, if we previously formatted it in NTFS, a window will appear where we must confirm formatting in FAT32. Click “Yes”.

The recording has started. We are waiting for completion.

After the bootable USB flash drive with the antivirus is created, a window with the text will appear: Kaspersky Rescue Disk was successfully written. Click "OK".

Now we need to prepare the computer for booting fromUSB storage device. You need to go into the BIOS and set it to boot from a flash drive. I'll show you using my BIOS as an example. It may be different for you, but the process will be similar, anyway!

We reboot the computer, do not remove the flash drive with the recorded antivirus from the computer.

When rebooting the PC, we need to go into the BIOS; to do this, press the DELETE or F2 key on the keyboard; it depends on your motherboard.

After entering the BIOS, find the Boot tab, select the item Hard Disk Drivers.

We put USB first.

We save the settings made using the F10 key and exit.

Now our computer boots from a flash drive.

If we did everything correctly, then Kaspersky will launch in a few seconds. Here we are asked to press the “Enter” key. Let's press.

Then, using the arrows on the keyboard, select the language “Russian”.

We accept the terms license agreement by pressing key 1.

Choose Graphics mode.

We are waiting for the program to start.

The program starts to scan your computer for viruses. We indicate by checkboxes which drives need to be checked and click “ Perform object check».

Disk scanning has started.

If any threats are detected in the process, we will need to take action. For example, “Delete” if the risk of infection is high, or “Skip” if it is not at all dangerous.

After all threats are found and removed, all we have to do is restart the computer.

And most importantly, reboot from hard drive, and check the functionality of the system.

This completes the lesson on creating a bootable USB flash drive with antivirus.

It often happens that when regular use flash drive or other portable storage We are putting our computer at risk.
This is especially dangerous when connecting someone else's USB device, the contents of which we can only guess. Thus, the likelihood of infecting your PC with viruses is very high.

USB Disk Security (Russian version) – excellent software solution, which is capable of automatic mode check flash drive for viruses immediately after connecting it to the computer. Occupied volume random access memory so small that the utility can be used on low-power PCs and laptops.

The program is fully compatible with most antiviruses, such as DrWeb, Kaspersky, Nod32, so no software failures or system conflicts will arise, and installation will take a matter of seconds, because the size of this software is small.

The main task USB utilities Disk Security is maximum online protection against most types of viruses and computer threats that are spread via USB drives, memory cards, portable hard drives and other external USB devices.

Now, you can check your computer for viruses online (when you connect a flash drive) without user intervention - everything happens automatically.

Attention: USB Disk Security is not a full-fledged antivirus, but merely complements its functions in relation to external drives and is activated the moment they are connected to the computer. In other words, to achieve reliable protection To prevent hacking and infection of the system, you need to have a fully functioning antivirus with up-to-date databases and support for the firewall function. Only in this case can you be sure of the relative protection of your computer from viruses and other potentially unwanted software.

The highlight in Russian is its ability to check your computer for viruses online for free - the developers have created a special module that allows you to check suspicious sites for the presence of malware. In addition, the program allows you to adjust the list of startup applications and clean up garbage from memory. All this adds advantages to this wonderful and free utility. You can download the program for free from the official website, or you can use the link below (we have already done this for you).

All malicious files that intend to enter the user's computer will be isolated and disinfected from the virus.

Checking the flash drive for viruses is mandatory, but if doing it manually is inconvenient, we recommend installing USB Disk Security!

The most common cause of PC infection occurs due to an outdated anti-virus database that does not have information about new threats. USB DISK SECURITY has its own unique algorithm for identifying malicious code sections, which allows you to quickly respond to security threats.

Good day! In today's article we will talk about how to check a flash drive for viruses. I think this question is currently the most relevant. It is possible to catch viruses on your computer not only through the Internet, but also through a flash drive. All users should protect their computer from the effects of viruses so that they do not suffer from them in the future. In addition, Windows often crashes in such situations. Before working with a flash drive, you need to check it for viruses. Believe me, there is nothing complicated. Now you can see this for yourself.

Insert the media into the USB connector of your PC.

The flash drive was recognized by the computer, which means you can get to work. Open “My Computer” and hover over the name of the flash drive.

Now all that remains is to wait for the procedure to complete, after which you will see the result.

Via Avast

If you have Avast installed, then open it and select “Protection”. Then go to the Antivirus module.

Select Other Scan.

Visit the USB/DVD Scanning section.

Once the test is completed, the result will appear. If viruses are found, send them to “Quarantine” or delete them.

Via Kaspersky Free

Open the program and select "Check". You can also go and check on the website online using the link https://virusdesk.kaspersky.ru

Specify "Check external devices", select the device and click "Run scan".

I also recommend watching and studying the video lesson.

How to check a flash drive for viruses online?

Many people wonder if it is possible to check viruses online? I will answer right away, yes. For example, if you do not have an antivirus on your computer, you can check it for viruses using the Internet.

Online Kaspersky

The program itself is reliable and popular. Using its service, you can quickly check your computer for viruses.

What are the benefits of the program?

Doesn't slow down your work;
Does not affect antivirus programs that are already installed on the PC itself;
Reports detected viruses;
Gives the result with a detailed report.

If you decide to use this service, then simply follow the link: http://www.kaspersky.ru/free-virus-scan and download the installer file. Run the program and wait until the scan is completed.

Doctor Web

Go to the official website of the program and click on the “Browse” button.
Specify the path to the file you want to check and click “Check”.
Good way check your flash drive for free.

Finally, I would like to note that it is completely impossible to scan your computer and remove viruses online.

I advise you to install a full antivirus program. By the way, such a program will protect your computer, which is very good. Thank you all for your attention, bye everyone!

Along with cloud services We very often use regular flash cards to store photos and movies. We connect it to other people's computers and laptops, which carries the risk of infection with viruses and other malware. The statistics are inexorable: every 10th computer is a direct threat. The question arises: how to protect a flash drive from viruses without reducing the comfort of its use?

Standard Windows Methods

Most often, a USB drive is infected through a file autorun.inf. This file serves a very specific purpose: automatically launching or installing applications from a flash card to a computer. It is hidden, but is present on any flash drive. As in other areas of life, early protection and prevention are better than time-consuming treatment that does not guarantee a 100% positive result. Therefore, the main task is to make the autorun.inf file invulnerable to attempts to infect it.

It is extremely important: the methods described below will protect the media from malware that uses USB flash as a means of spreading itself (it is they who seek to overwrite the mentioned file in their own way). Viruses, Trojans and other troubles in program installers will not go away: use antiviruses to detect them.

Disabling startup

This is a method of protecting the computer itself from a possibly already infected flash drive, both yours and someone else’s. The easiest way to do this is to follow the steps below. For Windows 7:

Press key combination Win+R.
In the “Run” window that opens, enter gpedit.msc and click on OK.

Click on "Allow" when a message appears asking you to perform an action as an administrator. You may also be required to enter an administrator password.
In the local editor window that appears group policy Expand the “Computer Configuration” list, and then “Administrative Templates”.
Select "All parameters".

In the list that opens on the right, right-click on the line “Disable autorun”.

Click “Change”, make the “Enable” item active, the value “All devices” should be set below.

Click "Apply".

Please note: in some Windows versions(8.8.1) the sequence in steps 4-6 may be slightly different and look like this: “Computer Configuration” – “Administrative Templates” – “ Windows components» – “Autorun policies” – “Disable autorun”.

A reboot may be required for the changes to take effect. That's all - now any flash drives connected to the computer will not run on it automatically and will not cause harm without user intervention.

Autorun file protection

Now there is a way to protect the flash drive itself from malware distributed using physical storage media. We are talking about the same autorun.inf.

In the good old days, it was enough to create an empty write-protected file on a USB drive. That is, with read-only rights. Today such measures are not enough. But the essence of the actions is similar. On a flash drive, verified good antivirus, making sure that there are no dangers, create a special file. Open a regular notepad and copy these lines into it:

attrib -S -H -R -A autorun.*
del autorun.*
attrib -S -H -R -A recycler
rd "\\?\%~d0\recycler\" /s /q
attrib -S -H -R -A recycled
rd "\\?\%~d0\recycled\" /s /q
mkdir "\\?\%~d0\AUTORUN.INF\LPT3″
attrib +S +H +R +A %~d0\AUTORUN.INF /s /d
mkdir "\\?\%~d0\RECYCLED\LPT3″
attrib +S +H +R +A %~d0\RECYCLED /s /d
mkdir "\\?\%~d0\RECYCLER\LPT3″
attrib +S +H +R +A %~d0\RECYCLER /s /dattrib -s -h -r autorun.*
del autorun.*
mkdir %~d0AUTORUN.INF
mkdir "?%~d0AUTORUN.INF..."
attrib +s +h %~d0AUTORUN.INF

Save the result to a USB flash drive, naming the file locker.bat. After the dot there is an extension, it is extremely important and should look exactly like this .bat. Open the flash drive through Explorer and launch the newly created file with a regular double-click. It will run as a small program and create a secure folder called AUTORUN.INF.

What does this give? By inserting USB Flash Drive into an infected computer, you don’t have to be afraid of viruses that are spread via USB. Such a virus will rush to overwrite the autorun.inf file, but it’s not there! Instead, a folder, and one that is protected.

It is also important: viruses can write themselves to other places on a flash drive by changing other files. Therefore, when inserting it into your computer, check it with an antivirus before opening it.

Radical way

If you have to connect a flash drive to someone else's computer, but only to download files from it, the option of switching the file system to read-only mode is suitable. This is an effective, but, in most cases, inconvenient method that makes the “send to” option inoperative. removable drive"and similar operations.

In order to apply this method you must:

Format USB drive to file NTFS system. Please note: all data from the flash drive will be deleted! If the flash drive is already in NTFS, skip this step.

Write down all the necessary data and put them in one folder.
Open the properties of the flash drive (right-click) and in the “Security” tab, click on the “Change” button.

In the “Allow” column, uncheck all the boxes except for the “List folder contents” and “Reading” items.
Click "OK".

Now no virus can be registered on a flash drive.

Using third party programs

You can also protect your USB drive from malware using programs specially created for this purpose. For example, Panda USB Vaccine. This free utility designed specifically to protect removable media.

After downloading and launching it, connect the flash drive you want to protect to your computer. Follow 2 simple steps:

In the drop-down menu, install the desired USB drive;
Click on the Vaccinate USB button.

That's all! The flash drive is protected from overwriting the autorun file. Essentially, the program simply disables autorun, but does this by pressing a couple of buttons in a convenient interface.

Conclusion

Unfortunately, you will not be able to 100% protect your flash drive from viruses. The measures described in the article only prevent malware from automatically penetrating first onto a USB drive and then onto your PC. Always keep your antivirus up to date and scan flash drives before opening them in Explorer.

Every storage medium can become a haven for malware. As a result, you may lose valuable data and risk infecting your other devices. Therefore, it is better to get rid of all this as soon as possible. We will look further at how you can check and remove viruses from your drive.

Let's start by looking at the signs of viruses on a removable drive. The main ones are:

files appeared with the name "autorun";
files appeared with the extension ".tmp";
suspicious folders appeared, for example, "TEMP" or "RECYCLER";
The flash drive stopped opening;
the drive cannot be removed;
files have disappeared or turned into shortcuts.

In general, the media becomes slower to be detected by the computer, it takes longer for information to be copied onto it, and sometimes errors may occur. In most cases, it would be a good idea to check the computer to which the flash drive is connected.

To combat malware, it is best to use antivirus software. These can be either powerful combination products or simple, highly targeted utilities. We invite you to familiarize yourself with the best options.

Method 1: Avast! Free Antivirus

Today this antivirus is considered one of the most popular in the world, and for our purposes it is perfect. To use Avast! Free Antivirus to clean your USB drive, do the following:

You can also scan media via context menu. To do this, follow a number of simple steps:
Right-click on the flash drive and select "Scan".

By default, Avasta is configured to automatically detect viruses on connected devices. The status of this function can be checked using the following path:

Settings / Components / File system screen settings / Scan on connection

Method 2: ESET NOD32 Smart Security

And this is an option with less load on the system, so it is often installed on laptops and tablets. To scan your removable drive for viruses using ESET NOD32 Smart Security, do the following:

You can set up automatic scanning when you connect a flash drive. To do this, follow the path

Settings / Additional settings/ Virus protection / Removable media

Method 3: Kaspersky Free

The free version of this antivirus will help you quickly scan any media. Instructions for using it to complete our task are as follows:

Don't forget to set up automatic scanning. To do this, go to settings and click "Examination". Here you can set the antivirus action when connecting a flash drive to a PC.

For reliable operation of each antivirus, do not forget about virus database updates. They usually happen automatically, but inexperienced users can cancel them or disable them altogether. This is not recommended at all.

Method 4: Malwarebytes

One of best utilities to detect viruses on computers and portable devices. Instructions for using Malwarebytes are as follows:

You can go the other way by simply right-clicking on the flash drive in "Computer" and selecting "Scan Malwarebytes".