Free Online Virus Scanner is an effective solution to scan and remove common virus and malware threats from your computer without the need to install separate antivirus software. All it requires are launcher, Java or Active-x components. Using free online virus scanner might not help protect your system from viruses, but at least you can remove existing virus infection. You can also analyze which of the below scanner has the higher detection ratio. As the saying goes, not all antivirus are created equal.
– Internet connection
– Administrative privilege for Windows Operating System
1. Temporarily Disable System Restore in Windows 7/Vista/8.
Note: You must have an Administrator Privilege to disable System Restore. It is advised to enable System Restore after this procedure. This method will delete existing restore points. If you are planning to use these restore points, do not proceed with this step.
a) Open Windows Explorer or Libraries.
b) On left sidebar, right-click on Computer, then select Properties.
c) On left sidebar of Control Panel Home, select System Protection.
d) System Properties windows will appear. On Protection Settings area, please select OS (C:)(System) and click Configure.
e) On Restore Settings, select Turn off system protection.
f) Click OK to save the settings.
2. Reboot computer in SafeMode with Networking to be able to connect to Internet while in safe mode.
a) During BootUp process Press F8 continuously until selection appears.
b) Use Arrow Up+Down to select SafeMode with Networking on the selections menu.
c) Hit Enter on your keyboard to proceed.
3. Connect to Internet and Scan with any of the following on-line Virus Scanner.
Symantec Security Check
Symantec Security Check will scan computer for exposure to various kinds of online threats and viruses. This utility is consist of Security Scan and Virus Detection. Symantec Security Check is an effective solution to check your computer’s security status. Proceed with the scan.
Update: This is now called Norton Security Scan. A free lightweight virus scanner that can be downloaded for free.
TrendMicro’s HouseCall can detect and remove extensive kinds of computer threats like viruses, Trojans, worms, spyware and malware. In addition to quickscan, HouseCall has other scan options to suit your needs.
Panda Active Scan
Panda ActiveScan is an easy to use online virus detection that can run on your browser. With greater detection capability, Panda ActiveScan will identify all types of computer threats.
Bitdefender QuickScan quickly detects viruses on your system with its in-the-cloud scanning technology. It runs online from any PC as long as it has Internet access.
F-Secure Online Scan
F-Secure Online Scanner helps you get rid ot viruses, malware and spyware that causes troubles on the computer.
Update: F-Secure Online Scanner is discontinued.
4. Thoroughly scan your computer with On-line Virus scanner and clean/delete all infected files.
5. Reboot computer and start normally.
6. Do another scan to make sure that there are no threats left on your computer.