Are you a computer expert and your less competent friends call you to solve some virus problem on their desktop?

To operate, you must bring all the software that can be useful to solve every problem. Using a USB pendrive, you can take the most important applications to save data and eliminate various viruses, such as rootkits, malware and others.

Well, if you do not have these free antiviruses yet, I’d like to show you the best, most effective portable antivirus software you can add to your collection of portable software to scan for viruses and eliminate them.

Let’s immediately see what are these 5 portable antiviruses on USB stick, which can solve various problems related to a virus attack.

The best 5 free portable antivirus

1. ClamWin

clamwinfree antivirusClamWin  is one of the most popular free portable Antivirus. You can quickly connect your pendrive to your computer and scan for viruses. You can choose which drive or which folder you want to scan. There are no limitations with scanning. Real-time scanning is not available. Also, scheduled scanning is disabled because it is not useful in a portable environment.

With ClamWin, you can also filter out file extensions from scans and limit the scan to even a certain number of files. Furthermore, you can send a notification email yourself if a virus is detected. The most important aspect is that the virus definition database is updated regularly.

2. Spybot – Search & Destroy

SpybotSpyware is one of those things that antivirus software sometimes can not track down. So, an antispyware is a must in your tool collection on pendrive. Spybot – Search & Destroy is one of the most used portable antispyware available on the Internet. You can scan the entire system or a particular file scan. Spyware is quarantined and you can get the scan statistics from there.

Spybot – Search & Destroy detects and removes tens of thousands of spyware and malware from the PC. You can also clean the traces coming from the use of software and registry correction. Spybot is freeware for personal use. Many cleaning and immunization features require administrator rights that will be required at startup.

3. Kaspersky TDSSCleaner

Kaspersky TDSSKillerThe Rootkits are one of the main problems in a computer system. Rootkits hide the existence of malware and anti-virus software does not recognize them during the scan. In this case, an anti-rootkit software is also necessary. Kaspersky TDSSKiller provides security and prevents the rootkit from exploiting the system. It is possible to remove some of the common and known rootkits that could affect your computer system.
You just have to start the scan and the report will be generated. You can change the scan parameters in which system drivers and system memory can be filtered from the scan. In addition, you get additional options to verify the digital signature of each software.

4. HijackThis

HijackThisHijackThis finds out if any malware has made any changes in the registry or in the system settings. A log file is created that displays which files have been modified. You can then further restore the values that have changed. Together with the software, you get a group of tools that include Uninstall Manager, Host file manager and Process manager.

5. FileAssassin

fileassassin-screenshotDuring the file deletion process, you may run into an alert such as “Access denied” or “I can delete the file“. This occurs when one of the malware has hit that file and does not allow you to delete it. In this case, FileASSASSIN can come to your aid. It will not only delete the file, it will also terminate the processes that have been affected by the malware. Just select the file and press Run.
If you wish to delete the file from the software itself, then you will have to select the option. Otherwise, the file will only be unlocked and you can delete it manually.

These are some of the best known free portable antiviruses for each category of virus. From these antiviruses on a USB stick, you can delete rootkits for malware that do not allow you to delete files. If you think that I have not reported an antivirus that is worthy of being included in this list, then let us know in the comments that we will insert it.



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