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Looking for the best free virus removal tool to help cure your computer system of infections? Now look no more, here's the list of free online scanner you can use.

Trend Micro HouseCall
Offers a free online virus and spyware scan. This is the service you'll most likely see recommended in first place on many PC security related forums. It is indeed that popular! TrendMicro scan goes far beyond bare virus detection, supports Windows and Mac based computers, Mozilla and Internet Explorer browsers. Important: you can choose from either ActiveX engine or Java engine. These set of options make this online scan very versatile. Currently there's a new version available for testing .

Go to Trend Micro Housecall.

BitDefender Online Scan
BitDefender Online Scanner is an on-demand virus scanner which incorporates the award-winning BitDefender scanning engines. You can use it to scan your system's memory, all files and drives' boot sectors, and to automatically clean infected files. As to cons, it requires IE 4.0+.

http://www.bitdefender.com/scan8/ie.html

McAfee FreeScan
Offers a browser window with real-time statistics - number of files scanned, infections, name of detected virus. The scanning service is solid as everything produced by the brand, the drawback is that it supports IE browser only.

Go to http://us.mcafee.com/root/mfs/default.asp

F-Secure Online Scan
F-Secure Online Virus Scanner (version 3.3) is a free service. Use it to find out if your computer is infected, and disinfect your computer if needed. The product will automatically download the necessary components and virus definition databases as it is started. As to cons, it requires IE 6.0+ and works with ActiveX controls only. If ActiveX is disabled, than you can't use the service. Javscript need to be enable.

Go to http://support.f-secure.com/enu/home/ols.shtml

ESET NOD32 Online Antivirus Scanner
ESET's Online Antivirus Scanner uses its patented ThreatSense technology which is featured in company's desktop and server products. Initial download of antivirus signature database takes under a minute if you're on a broadband. ESET offers to remove the detected infections - for this you need to check the proper boxes (see screenshots below). Spyware is removed as well! NOD32 Scanner works only with ActiveX so it requires Internet Explorer.

Go to http://www.eset.com/onlinescan/

Kaspersky Online Scanner
Kaspersky claims its Online Scanner to have the highest detection rate. To some extent, it is true. It's antivirus database is updated hourly which may be considered to be the fastest response to emerging online threats. It uses Microsoft ActiveX technologies to scan your computer for malicious code and offers the same exceptional detection rates as other Kaspersky Lab products.

NOTE: The online virus scanner will not remove the malware from your machine if it finds it - installing Kaspersky software is required to do this. You can try our antivirus software (full product) for FREE by downloading and installing a free trial.

Go to http://www.kaspersky.com/kos/english/kavwebscan.html

Panda ActiveScan with TruPrevent
Panda security vendor offers anyone to try out its TruPrevent technology. With a database of 185,000 threats its online scan can not only detect, but also remove the infections. Additionally scans for spyware modules (like dialers, jokes, rootkits, etc). Panda claims to be able to desinfect the known spyware, and thanks to its heuristic engine, it detects even unknown types of malware.

Go to http://www.pandasecurity.com/homeusers/solutions/activescan/

Avast! Online Scanner
Online virus scanner gives the possibility to check your files quickly and free of charge. All you need to do is just browse for the target file on your PC, enter the captcha and press 'Scan' button and it will begi scanning.

Go to http://onlinescan.avast.com/

DrWeb Online Scan
DrWeb is another PC security product from Russia. Dr.Web scanner successfully detects Win32.Ntldrbot (aka Rustock.C) and cures system files infected by the rootkit. Currently no other anti-virus can detect this malicious program. It offers to scan single files - the webpage is as simple as possible, there's nothing on it except the "browse" button to specify the path to the target file.

Go to http://online.drweb.com/

VirusTotal
Virustotal is a service that analyzes suspicious files and facilitates the quick detection of viruses, worms, trojans, and all kinds of malware detected by antivirus engines.

Virus Total receiced a PC World Magazine Award in 2007 as one of 100 best products of the year

VirusTotal is not substitute any antivirus software installed in a PC, as it only scans individual files on demand. It does not offer permanent protection for the user's system either.

http://www.virustotal.com/