How to Scan for Viruses Online for Free

If you want to check your computer for viruses but don't want to download antivirus software to your hard drive, many sites online let you scan your computer for viruses for free. Although online virus scanners can't remove viruses from your computer, they can tell you where threats exist. Many free online virus scanners can also find adware and spyware on your computer.

Difficulty:

Easy

Instructions

1. Navigate to the Symantec Security Check online virus scanner at security.symantec.com/sscv6 and click "Continue to Symantec Security Check." Click the "Start" button under Virus Detection. Read and accept the license agreement. Install the ActiveX control when prompted. The scan will begin automatically when the software has installed. Check the virus scan window when it finishes to see how many files it scanned and whether it found any viruses.

2. Go to Bitdefender's QuickScan at bitdefender.com/scanner/online and click "Start Scanner." Click "Continue" in the window that opens and then click "Free Scan Now." You will be asked to install an extension before the scanner will run. The software will quickly scan your computer for viruses and malware.

3. Launch housecall.trendmicro.com to access the Trend Micro HouseCall online virus scanner. Click "Download HouseCall" for a small download needed to scan your system. Click "Get HouseCall Now" and save the file. Double-click the downloaded .exe file to install the small download. Read the license agreement and click the radio button next to "I accept the terms of the license agreement." Click "Next" and then "Scan Now."

Tips & Warnings

• When the results of your online virus scans are complete, save them to your hard drive or write them down. Note the folders where the software found viruses and other threats on your computer. Navigate to the folders and delete the infected files manually.

• Use a free desktop antivirus software, such as Avast! or AVG Free, to keep your computer protected from viruses. You can also use these free online antivirus programs to scan your computer, but they may miss many threats.

Resources

• Symantec Security Check
• Bitdefender: QuickScan
• Trend Micro HouseCall