10 Free No Installation Portable USB Antivirus For Removing Scamware And Malware

Updated: September 7, 2017 / Home » Computer and Internet Security » Download Antivirus Protection » Free Portable USB Antivirus

Is something not quite right with your computer? Are you being plagued by pop-up windows trying to get you to download security software or alerts claiming your PC isn’t secure? It sounds like you’ve been infected with a type of threat known as “scamware.” The solution? Norton Power Eraser.Norton Power Eraser is specially designed to aggressively target scamware. It uses our most thorough scanning technology to eliminate threats that traditional virus scanning doesn’t always detect, so you can get your PC back.

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If your Microsoft Windows XP, 7, 8, 8.1 and 10 is infected by malware, chances are, your antivirus has been disabled by the virus or trojan. Uninstalling and reinstalling any antivirus is useless because the malware is programmed to disable it. This is where portable USB antivirus comes to the rescue. Two heads is better than one, having a second opinion from a different security software is better than none. Without further ado, here are 7 portable anti-virus.

↓ 01 – Microsoft Safety Scanner (136MB)

microsoft safety scanner No Installation Portable USB Antivirus Software

Do you think your PC has a virus? The Microsoft Safety Scanner is a free downloadable security tool that provides on-demand scanning and helps remove viruses, spyware, and other malicious software. It works with your existing antivirus software.

Microsoft Safety Scanner expires 10 days after downloading. To re-run a scan with the latest anti-malware definitions, please download and run Microsoft Safety Scanner again.

↓ 02 – Avira PC Cleaner (2.2MB)

avira pc cleaner No Installation Portable USB Antivirus Software

PC Cleaner is a malware scanner that works alongside other anti-malware products. It protects PCs, laptops and netbooks running Windows XP (SP3) and above. Best of all, PC Cleaner doesn’t require installation, registration or any additional drivers.

↓ 03 – Intel’s McAfee GetSusp (1.5MB)

mcafee getsusp No Installation Portable USB Antivirus Software

McAfee GetSusp is intended for users who suspect undetected malware on their computer. GetSusp eliminates the need for deep technical knowledge of computer systems to isolate undetected malware. It does this by using a combination of heuristics and querying the McAfee Global Threat Intelligence (GTI) File Reputation database to gather suspicious files.

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↓ 04 – Comodo Cleaning Essentials (22MB)

comodo cleaning essential No Installation Portable USB Antivirus Software

Comodo Cleaning Essentials (CCE) is a set of computer security tools designed to help users identify and remove malware and unsafe processes from infected computers. Designed as a portable application, the software requires no installation and can be run directly from removable media such as a USB key. CCE consists of two core technologies:

  • KillSwitch – an advanced system monitoring tool that allows users to identify, monitor and stop potentially unsafe processes that are running on endpoint systems. Uniquely for a product of its type, KillSwitch leverages Comodo’s huge whitelist database to isolate untrusted processes with an extremely high degree of accuracy – improving IT operational efficiency by reducing false positives and cutting the amount of time spent troubleshooting an endpoint machine.
  • Malware scanner – fully featured malware scanner capable of unearthing and removing viruses, rootkits, hidden files and malicious registry keys hidden deep within a system. The scanner is highly configurable, uses the latest heuristic techniques to detect previously unknown viruses, features first-class malware removal capabilities and is capable of detecting hidden drivers and services loaded during system start-up.

↓ 05 – Kaspersky Security Scan (124MB)

kaspersky security scan No Installation Portable USB Antivirus Software

They’ve changed the way this software runs now, it is not portable anymore but still perform the scan as usual. Checks for known malware and software vulnerabilities on your PC – plus advises you on your PC’s security status with the free Kaspersky Security Scan. Kaspersky Security Scan uses Kaspersky Lab’s latest technologies – plus real-time access to cloud-based security information – to ensure it can scan your PC for the latest viruses and emerging threats.

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↓ 06 – Symantec Norton Power Eraser (2.9MB)

norton power eraser No Installation Portable USB Antivirus Software

Eliminates deeply embedded and difficult to remove crimeware that traditional virus scanning doesn’t always detect. Norton Power Eraser is a free tool that can be downloaded and run to remove threats from your computer. You can run this tool to scan for threats even if you have a Symantec product, or any other security product. If you cannot start the computer in Normal mode, you can run this tool in Safe mode. Norton Power Eraser is easy to download, and scans your computer quickly to detect the most aggressive computer viruses. You don’t need to install this tool.

The Norton Power Eraser tool is compatible with computers running Microsoft Windows operating systems only. It does not work with computers running on Mac OS X.

Norton Power Eraser uses aggressive methods to detect threats, and there is a risk that it can select some legitimate programs for removal. You should carefully review the scan results page before removing files.

↓ 07 – Dr.Web CureIt! (157MB)

dr web cure it antivirus free No Installation Portable USB Antivirus Software

Run Dr.Web CureIt!® (no need to install it) is Russian antivirus that quickly scan your computer and cure it of any malicious objects. Dr.Web CureIt! is an indispensable tool for curing computers running MS Windows 8/7/Vista/XP/Server 2003/2008/2012 (32- and 64-bit systems). Dr.Web CureIt! detects and neutralizes viruses, rootkits, Trojan horses, spyware, and other malicious objects that have gone undetected by your anti-virus software.

↓ 08 – Zemana AntiMalware Portable (5MB) | 14 day free trial

Zemana AntiMalware Portable

Clean your computer in minutes, no matter how badly infected! Zemana AntiMalware Free makes it possible! Zamana AntiMalware is an excellent choice to have installed on your computer, because of the low resource consumption you can use the program daily to make sure your not infected with any malicious files, and because of the ease to use interface the program is avaiable to every computer user and not only expert.

  • Advanced Malware Detection and Removal
  • Browser Cleanup
  • Effective Against Rootkits and Bootkits
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↓ 09 – Emsisoft Emergency Kit (270MB)

Emsisoft Emergency Kit

The Emsisoft Emergency Kit contains a collection of programs that can be used without software installation to scan for malware and clean infected computers: Emsisoft Emergency Kit Scanner and Emsisoft Commandline Scanner. The Emsisoft Emergency Kit Scanner includes the powerful Emsisoft Scanner complete with graphical user interface. Scan the infected PC for Viruses, Trojans, Spyware, Adware, Worms, Dialers, Keyloggers and other malicious programs.

↓ 10 – Sophos’s HitmanPro (12MB) | 30 day free trial

Sophos's HitmanPro

HitmanPro is only 12 MB and requires no installation. It can start directly from a desktop, USB Flash Drive, CD/DVD, or a remote storage device. Even if your antivirus is being manipulated by malware or ransomware is getting a hold of your files, HitmanPro functions normally, detecting and removing the threat.

HitmanPro has the ability to remove persistent threats from within your operating system and replaces infected Windows resources with safe, original versions, all while proactively blocking reinfection attempts. A new host of malware is activated every day and can be found everywhere, even on trusted websites, evading regular antivirus programs. HitmanPro is designed to run alongside your antivirus, using its behavioral deep scanning to find and eliminate zero-day, next-gen malware that has avoided detection.

How To Stop Viruses, Trojan and Malware

malware infographic microsoft antivirus Free No Installation Portable USB Antivirus For Removing Scamware And Malware


21 comments on “10 Free No Installation Portable USB Antivirus For Removing Scamware And Malware

  1. Gravatar
    Joost de Valk [ Reply ]

    ClamWin Portable Screenshot ClamWin is a Free Antivirus for Microsoft Windows

  2. Gravatar
    jack wallen [ Reply ]

    Five portable antivirus and antimalware tools to carry with you at all

    • Gravatar

      The article writer says they are portable, so I downloaded Kaspersky to test it.
      First of all, it is NOT 700k, it is 124 MEGS.
      Second, I downloaded the initial .exe to my flash drive and clicked install, then when it finally finished I discovered Kaspersky installed itself to my hard drive instead of the flash drive.
      Third, it prompted my to scan my computer without downloading the updated virus signatures.
      Fourth, my guess is that the author wrote this article in 1/2 hour and didn’t bother to actually download and test any of these himself, so it’s a garbage article. Does he get paid by the word and write 20 articles a day?

      • Gravatar
        Ngan Tengyuen [ Reply ]

        Hi erik, sorry for the error, when I use kaspersky Security Scan many years ago, it was portable, probably they changed the way it runs now. I updated the article and added 3 more to the list few days ago. Thanks for informing me, I will update the article.

  3. Gravatar
    Yahoo Answer [ Reply ]

    What is the BEST portable antivirus?

    • Gravatar

      There is more than likely no best. I am about to partition a flash USB drive and install all of these if i can. The next time i suffer an infection, i will just run through as many as i can.

    • Gravatar

      As for me, it is GridinSoft Trojan Killer Portable

  4. Gravatar
    Fernando Ortega [ Reply ]

    TrustPort Antivirus USB Edition (Portable), Download now!!!

  5. Gravatar
    Aieie Brazov [ Reply ]

    F-Secure On Line Scanner
    +
    SophosVirusRemovalTool

  6. Gravatar
    frontncenter [ Reply ]

    This is a cookie cutter list of garbage! McAfee? …and Norton? Really??

    It’s no wonder these generic “help/info” sites that push big Corp. crap come up 1st in search engines. lol.

  7. Gravatar
    brian glover [ Reply ]

    The three best portable malware scanners not even listed : 1) Zemana anti malware portable (free) uses several anti virus engines eg Bitdefender and Kaspersky , its very fast & powerful cloud AM
    (2) Emsisoft Emergency Kit doesnt need internet connexion (free) (3) Hitman Pro also uses multiple engines including Bitdefender , free for first use

    • Gravatar
      Ngan Tengyuen [ Reply ]

      Thanks for the info. Zemana and Hitman are freemium, thus not in the list but I think it is worth including. I’ll include all 3 when I update the article.

  8. Gravatar
    brian glover [ Reply ]

    Thanks but Zemana portable free – (Zemana.AntiMalware.Portable.exe) is a recent introduction which is permanently free and not a trial version. It is different to the trial Premium version you show. It is a completely portable cloud version which I use all the time from a usb stick to check for pc infections.

  9. Gravatar

    Comodo requires a reboot – can’t use on servers.

    • Gravatar
      David Klement [ Reply ]

      Comodo Cleaning Essentials doesn’t. Tested on Windows Server 2012 R8 x64

  10. Gravatar

    Microsoft Safety Scanner is NOT Portable….

  11. Gravatar
    anonymous [ Reply ]

    Avira also installed on the hard and superseded and disabled windows defender. I agree with erik that the author didn’t actually test these programs. Incidentally Trend Micro Housecall doesn’t install and it is not even mentioned. I definitely don’t want any of them to install either and both Kaspersky and Avira did indeed install. I gave up after the second. This list is inaccurate if you want to use AVs that don’t install.

  12. Gravatar

    Thank you very much… Had a few Problems in my Registry and no antivirus was working.
    Also i couldnt install a new one… But this gives me hope..
    Thanks for the list

  13. Gravatar

    Emsisoft has begun to play dirty with non-configurable pop-up ad that always appears whenever the application closes. After more than 10 years in existence, what was a wonderful free backup scanning solution turned into a monstrosity.

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