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ClamWin Portable

Editors' Review


ClamWin Portable is a fully functional, fully portable version of ClamWin Free Antivirus. Like the installed software, ClamWin Portable is capable of scanning all your drives for viruses and spyware, but it's not a primary antivirus solution. It's a fast, lightweight tool for spot-checking newly acquired files before transferring them to a USB drive and then to your PC. Since it runs on any compatible Windows PC without having to be installed or uninstalled, ClamWin Portable is ideally suited for the job.


Free, open source, compact: ClamWin Portable offers most of the advantages of the installed program, like being completely free (and ad-free) with the support of an open source project community. It doesn't take up much space on a portable drive, and it launches quickly.

Portable protection: You can run ClamWin Portable from your USB drive on host machines and scan files for infection before copying them to the drive.

Memory scan: ClamWin Portable also finds and zaps the nasty bugs that hide in system memory.


Manual only: ClamWin lacks an on-access real-time scanning capability. Files and folders must be scanned manually to detect viruses.

Slow on big scans: Lightweight ClamWin Portable performs well when scanning individual files and folders, but definition updates and larger system scans can take a long time. ClamWin Portable also lacked permission to open and scan many system directories.

Bottom Line

ClamWin Portable isn't the comprehensive antivirus solution your PC requires, but it's an excellent auxiliary tool for spot-checking files and folders for infection.

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Publisher's Description

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User Reviews

Results 1–2 of 2

3 stars

"Worth every penny"

May 09, 2013  |  By daveyadams

 |  Version: ClamWin Portable 0.97.8


FREE and finds many results


Very slow and many false positives

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4 stars

"good demand scanner for system check"

May 05, 2013  |  By ChoiceVoice

 |  Version: ClamWin Portable 0.97.8


-open source
-second check demand scanner
-easy to use
-so so detections (not great, but better than many) - good for older malware. good for a second opinion. considering the volume of malware, it's a good idea to use an unobtrusive, friendly scanner to take a looksy.
-incremental updates (do not like when you have to redownload entire virus data base each time like in malwarebytes).
-no tricks, no hidden running processes, no startup entries, no ask tool bar etc.
-scan drives or running processes.
-scan all files, not just `unmodified' ones.
-small program comparatively.


-detection ratings are lower than the big boys of freeware.
-not sure about clean up. but suspect its ok also.


i use this on my i7 desktop and my netbook atom processor. contrary to what some comments suggest, i do not consider this a slow scanner. perhaps if you compare it to scanners that do not rescan files that haven't been modified, it might seem slow in-comparison. however, clamwin scans all the files. it seems to me that clever malware could mask itself as not being modified and avoid a viral scanner. i prefer all files to be scanned (unless i'm doing a quick check). furthermore, some scanners just scan running processes. clamwin can be selected to scan in this way also and is quick at it.

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Results 1–2 of 2

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Full Specifications

Publisher ClamWin
Publisher web site
Release Date April 30, 2013
Date Added April 30, 2013
Version 0.97.8
Category Security Software
Subcategory Antivirus Software
Operating Systems
Operating Systems Windows 2000/XP/Vista/7/8
Additional Requirements None
Download Information
File Size 7.95MB
File Name ClamWinPortable_0.97.8_English.paf.exe
Total Downloads 77,308
Downloads Last Week 64
License Model Free
Limitations Not available
Price Free

Previous Versions:

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