There are tonnes of users who is also doing bad thing over internet as every seconds they are spreading there malicious application by various means like making phishing webpage, attach in some software, bundled with some video flash player, or via attractive online advertising.
So below here are some of the free and good online security scanner that will help you to check the threats on PC's or laptops.
[Note- Some of them ask to download its supportive addons (browser extension), or application before proceed to the online scan.]
1. ESET Online scanner- ESET is one of the best and free online scanner. ESET scan your computers for know malware, virus and other types of threats. It is optimized for Internet Explorer and it download ActiveX control in Internet Explorer. If you use other browser (Google chrome, Firefox) for scan, it will ask to download small application that help to run Online scan.
2. TrendMicro Online Scanner- Now TrendMicro is another best online virus scanner which have high threats detection ratio. The online scanner is named as Housecall and this provides a quick and easy check for threats regardless of the protection status of your existing security solution. It is easy to use, reliable and cleans your computer from Malware and virus.
3. BitDefender Online Scanner - Here comes the another impressive online security scanner tool. BitDefender is easy to use, with powerful detection and updates, and reliable. Its Online scanner is one of the fastest scanner (as I have seen) and it also scan your system for all the major threats. BitDefender run without installing any supportive apps or tools. Bitdefender scan and automatically clean the system memory, all files and drives' boot sectors also.
4. F-Secure Online Scanner- F-secure is also a good online scanner available for free. F-secure needs Java run-time environment for online scan of your system. F-secure is much effective scanner because first it downloads the latest virus database before preform scan.
5. Bullguard Online Scanner- Bull Guard is same as BitDefender scanner. It will ask to download supportive addons and then you can scan your system for the threats.
There are many other many others Online Virus Scanner available Quick Heal Online Scanner, McAfee Security Scan, Panda Active scan, but here I have only listed good online scanner. All the above discussed online scanner have good detection ratio and is less time and resource consumption.
If you have better service other then the discussed above, then comment below about that with the link, we will update after reviewing it.