Antivirus art

How Can I Scan My Computer Without an Antivirus?

We all know even a little bit of basic computer science. That’s how we know about viruses or malware that attack our computer system, creating crashes, loops, or the destruction of valuable information.

That is why operating systems such as Windows 10, have built-in antivirus, to avoid power overload and be more effective when scanning and analyzing the system.

But what happens when the system does not have integrated antivirus and you do not have an external antivirus? That’s when it’s time to look for an IT professional or follow the tips below.

If finding a needle in a haystack is difficult but not impossible, imagine finding a virus manually. Crazy! But don’t despair, the data you need is right here to help you solve that little problem.

How do You Know If You Need to Scan Your Computer?

It is always necessary. However, there are clear signs of analyzing your computer in depth. For example, the speed with which your computer works slows down considerably, the programs have crashes, and files disappear or become shortcuts, among other obvious cases.

When this moment comes, an antivirus is a best and most appropriate option to analyze your information. But, if your PC system does not have an integrated antivirus and you cannot download one, the only alternative is to perform a complete, detailed, and specific analysis.

How do You do That?

The truth is that it is not that simple, so a little information comes in handy. To do a full scan, detecting the virus is the main task you have. From that point on, the only way to remove the virus is technically by doing magic… Well, not so much as magic, but a little programming will get you there for sure.

There are two ways to scan your computer for a virus. The first one is a bit traditional and not very effective. This is due to the possibility of programs or files running without any problems, which shows no signs of having a virus on the system. This can be done by opening each program separately. With this, you will manage to carefully analyze if they show any signs of error that escape the common problems regarding the installation of the programs or the root of the files.

Yes, it sounds annoying. But that’s what happens when you don’t have an integrated antivirus on your computer and you can’t download one on your own. The other way to do a complete scan is through the application of very simple but more tedious programming commands.

It is also important to know that viruses affect the registry of the applications and files it infects so that they can run over and over again when the computer starts. This is what can be corrected with the commands and the following steps:

#1 The first step is to press the Win + R keys, which will take you directly to a window to run.

#2 The next thing you will do is type in a coordinate, known as “MSConfig”. This will help you to know each of the programs and processes that run automatically when the computer starts.

It is important to remember that some malware acts directly on programs that open processes when you start the computer and others need a push to infect the files.

Then, once this window has been opened, the “services” option will take you directly to find out if there has been suspicious activity in the system, say an error.

When you have reached this point, you can copy and paste the entry into your search engine of choice, and that way you will be able to determine whether what is affecting the proper functioning of your computer is malware or something else.

What to do in These Cases?

If it is a virus that is slowly infecting your computer, do not despair. Just delete the box where the virus is hosted and continue as if nothing happened.

But it does not end here, there is still one more step for the scan to be complete.

Although this step is not necessary if removing the input box was enough, it should still be done as a way to ensure that the virus has been successfully detected and removed safely, quickly, and efficiently.

#3 This step is directly dependent on finding the entry that the virus was used to infect the computer. Well, once you have detected the malware, you must use another command.

From your computer’s home screen, press Ctrl + Alt + Delete. This will take you to the task manager window. From here you will be able to cancel the running process of the program that has the virus hosted.

Once we have reached this point, now you just have to finish the process and you will be ready to restart your computer and verify that all the steps you did were successful.


What happens if you can’t scan in this way or simply can’t remove the viruses? This is when it is time to apply other methods.

It may happen that even if you know exactly where the virus is hosted, you cannot remove it even by terminating the process it is attacking.

In these cases, what you can do is apply another method. This time it is to run a file system distribution from a flash drive or an external drive. To eliminate the virus or force the stop of the process where it is hosted.

It Doesn’t End Here!

There are several ways to apply a quick and deep scan to your computer in search of the malware that is affecting it. Since viruses sometimes present themselves in the form of hidden files, or worse, files masquerading as system files, another technique you can use for this is the Windows Microsoft default search.

#1 once you have opened the Windows search engine, you will proceed to open the toolbar it offers you.

#2 there are several options, but the one we are interested in is the one for hidden folders and files.

#3 When you have displayed this window, you have to uncheck the option to hide system files.

#4 After finishing the third step, you can proceed to browse through the startup bar and check which program is not allowing the program to start correctly.

#5 seems simple, but doing so requires time, effort, and patience. When you have finished this process, you are free to delete the file that infects your computer and subsequently delete it from the recycle garbage can.

Your PC is Free!

Or something like that… the truth is that now you must restart your computer to find out if everything you did was worth it. Verify that the infected file is not on the system and to be sure, try to repeat the process looking for possible errors.

If everything is as it should be, you don’t have to worry anymore. Now all you have to do is find a way to install an antivirus on your computer and avoid having to go through this process altogether.

Important Notice!

You must remember that viruses can reach your computer in different ways and can affect it for a long time before you become aware of their existence.

If you do not have an antivirus, you may have to repeat this scanning process from time to time. At least every six months, to verify that everything is running correctly.


For an effective scan and to give your computer a break, try deleting temporary files from your computer. This will free up some space and decrease the chances that a virus has taken up residence in an unnecessary file.

While this tip may not remove the virus from your computer, it will help with cleaning up your computer and failing that, rule out possible threats on your computer.

There is no need to go to the extreme of having a virus-infected computer and not doing anything about it. Not having an antivirus or internet connection is not an excuse, you already know how to do a scan manually and without complications.

TIP #2

To prevent files from reinstalling on your computer and running again, you can try a very simple command. It is SHIFT + DELETE.

With this simple key combination, you will be able to permanently delete the files you have selected. The best part is that you will not have to worry about seeing it again, because this option allows you to delete it immediately and without return, without going through the recycle garbage can.


Yes, I still have something left to say. INSTALL AN ANTIVIRUS.

Although doing a scan on your own without using an antivirus or a process initiated from your favorite browser, there is nothing better than not worrying about it completely and letting a program specially designed to do that task, do the job for you.