Computer viruses are one of the issues that can affect the performance of our computers. Completely eliminating them many times is not easy and, in many cases, it is looking to reinstall the included formatting system. In this way, we make sure to have the computer as we found it when we took it out of its box. Let’s see how to solve the virus on your computer without losing all the files. For this, it is important to have a series of data that can help us with the solution. The first would be the date on which the virus entered, or we began to see an erratic operation of the equipment. We are also interested in knowing which virus is causing us problems. For that, nothing better than to carry out a complete test of the equipment with the antivirus that we have installed. This examination should be in depth, so it is convenient to select this option manually before passing the antivirus.
Use an online scanner to complement your antivirus
Sometimes it happens that our antivirus is able to detect a malicious file but can not delete it for different reasons. In these cases, it is interesting to go to specialized tools for the elimination of viruses that can be found in pages such as the OSI, the Internet Security Office, where we can find different tools that will complement the work of our antivirus. These tools are usually very effective in the detection and removal of malicious software , whether rootkits, malware, adware, worms, Trojans or spyware, which affect the performance of our computers and the privacy of our data in Internet browsing or seek to steal the financial data that we introduce when an online purchase is made.
If we are not sure that the file that has detected us is malicious or not, we can send a sample to online tools that are responsible for comparing this file with different virus databases. It is an online and free service, Total Virus, which will give us the answer to know with certainty if it is a virus or not. If yes, if the malware has not damaged our files and we do not have a backup, it is best to do it immediately, before applying any vaccine. If it is a ransomware, which encrypts the files but does not attack the system, we will have to almost certainly recover the data from a copy that we have in an external device.
Take advantage of the restoration options of your system
Sometimes if we know the date on which our team has started to go wrong we can go to a point of restoration of it. To do this we have to go to Control Panel> System> Advanced System Options> Protection tab of the system
where if we had activated the option we can try to recover a restoration point that we find sorted by date.
In Windows 10 there is also the option to recover our system or damaged files. For this, we have to go to Configuration> Update and Security where we have the option to recover files through Backup if we have previously activated it so that Windows makes a copy of our files on an external disk. This last way is a drastic way to get rid of any virus. Then we will have a job ahead, reinstall the applications we need and also restore our files from the backup, but we make sure that our system has been clean.
Reinstall the operating system from the hidden partition, remove the virus without losing data
On many computers, manufacturers create a recovery partition, which is usually hidden by security. This partition is used for extreme cases in which the operating system fails to boot because it has been damaged by a virus, for example. Normally you enter the recovery options with a function key, for example, F11, which will give us access to the restoration options of the system also to factory values. In the case of Lenovo has available a very interesting tool, Lenovo OneKey Recovery, which allows us, among other things, boot from the system partition and return the computer to its original state by just pressing the Novo button that is right next to the Power button on laptops. This key gives us access to a selection of options where if we choose System Recovery it will start the application and the system restoration.
This application also allows us to create our backup copies of the system, which allow us to have the computer back as it was at the moment of executing the copy. For this, it is necessary to run Lenovo OneKey Recovery once you have started the system and make the relevant copies, as well as restore them to any inconvenience. In any case, it would always be advisable to have an additional backup of the data in case any problem arises during the restoration process. In any case, as you have seen the best option always to preserve the files safely is to have a backup on an external device that is done regularly. In this way, we can be calm and with our data safe.
Viruses, worms, Trojans and other malicious specimens haunt computers and networks. The recent attack by Ransomware through the Trojan WannaCry has put cybersecurity on the front page of the general media, but for many years we have suffered all kinds of malware for all platforms, causing spam, data theft, cyber espionage, invasion of privacy and in general, serious damages for companies and users. Although prevention is the first and main line of defense, it is not always possible to stay safe from infection and any user will have ever had bad experiences with malware, even without specific alerts for security solutions.
If your computer goes slower than normal, the system shows random errors, the web browser freezes fighting to get rid of strange ads or you can not access your documents, you probably suffer a digital infection that besides preventing the usual use of the computer puts At risk your data. If this is your case and you can not eliminate the infection with your antivirus or do not use any security solution, it is time to face a process to eliminate a virus from a PC as the guide that has been published in business now and that we summarize.
Try saving files
The backups are the biggest “lifeline” to counter any type of computer virus and sometimes, with some of them the only solution. If you have not done it previously, you can try to save documents, photos, videos and any other personal or professional information that you can not lose even if they are infected, to try to recover them later in a clean system. Of course, it is only about copying the files to a controlled external unit, since we should not run any of these files until they are cleaned because other computers can infect us. If we can not access the equipment, we can use solutions such as rescue disks specially prepared to solve problems such as Hiren’s BootCD or Ultimate Boot CD.
Disinfects the equipment
If it is not possible to disinfect the equipment with the installed security solution, we must use a boot medium for virus rescue. An effective means taking into account that a great majority of malware is loaded/hidden in memory, complicating its detection/elimination once the operating system starts up. All large security providers offer the possibility to create them. Most are Linux in “Live CD” format (created and auto bootable from optical drives, pen drives or external USB disks), which can be used on the PC regardless of the system and without having to install anything on it.
Recover the system
If the malware cleaning was effective, remove the rescue disk and try to start the computer in the usual way. Install the best security solution you have available and review it again in the search for viruses. If the system works normally you have to check if all the applications that we had installed work correctly. Also drivers and drivers. Even if the operating system is clean and working, there may be damaged.
If despite previous efforts we have not been able to finish the infection, we can try options such as restoring the operating system to a factory configuration using the same operating system tool. If none of the above works, you have to perform a clean installation of the entire system, formatting the partition to ensure the elimination of the virus on the computer.
Prevents new damages
The partition of the system is clean but we must also check the rest of the partitions and the entire local network because the virus has been able to arrive in this way and infect the computer again. You can check it with the rescue disks created previously and also with a security solution installed on the computer.
Finally, you can recover your personal data without first scanning and thoroughly disinfecting the data files that we had saved in the backup. Make sure you clean them before copying them back to the computer because they could be the cause of the infection and have to repeat the whole process again. Finally, insist on prevention as the first and main line of defense , observing the due caution in the websites through which we navigate; the applications that we install; the reception of emails and attachments; the downloads; the use of social networks; the essential updates of the operating system and applications and the use of a good security solution.