On demand scanners or second opinion scanners are good to use when we want to make sure that our system is not infected with any malware or virus.

Best Second Opinion Scanners

For on-demand scanning these software are free to use. So it took nothing to you if you think your computer has some issues and you doubt whether you existing antivirus is working properly or not.

1. Malwarebytes

Malwarebytes is a popular and strong anti malware.  It has its own set of database of malware. It is free for life to use as an ‘on demand scanner’ for second opinion. It also provides a 30 days trial for free for its premium version. Its free version is free for life to scan & eliminate the threats. So you can use its free version as an on demand second opinion scanner. To get a realtime protection you need to buy its premium subscription.

2. HitmanPro

HitmaPro have also its own set of malware database. Its plus point is that it uses a behavioral based technology which detects the suspicious file and scan it in the cloud with three top antivirus engine of the industry. HitmanPro only provides a full 30 days trial. There is no free version of it. To get a realtime protection you need to buy the HitmanPro.Alert product.

3. Zemana

Zemana is a less known name but is a powerful malware scanner. Even it may catch adware which other can’t catch. So Zemana is also a good second opinion scanner for your system. As like Malwarebytes it also provides free and paid options. Free can be used as on-demand scanner. Paid provides real time protection. It gives free premium trial for 14 days.

4. Emsisoft

Emsisoft is another reputed name of antimalware. As like HitmanPro it also scans the file with the 3 reputed antivirus engines alongwith its own strong antimalware engine.

If you need real time protection then all these software are compatible with mostly all antiviruses, so you can install them along with your existing antivirus and it will work as extra line of defense.

Apart from these second opinion malware scanners you can also consider multi av scanners. They provide scanning with multiple antivirus and malware engines.

Best on demand online scanners by popular antivirus companies

These online scanners are provided by the popular antivirus companies. Choose an antivirus scanner other then the antivirus installed in your system. All these scanners are free to use as a second opinion scanner. Again these doesn’t provide the real time protection but are ‘on demand’ scanners used as second opinion scanners to make sure that there is no infection in the device and current security software is working fine. Mostly all of these tools are free.

  1. Norton security scan
  2. McAfee security scan
  3. Trend Micro housecall
  4. F-Secure online scanner
  5. Panda cloud cleaner
  6. Bitdefender quick scan
  7. Eset online scanner


Q: Why we require a second opinion scanner or an on demand scanner?

Second opinion scanners are highly recommended these days. Our life is getting dependent on tech gadgets specially on smartphones and computers. And both these devices are on high risk of cyber threats like viruses, malware, crimeware, ransomware etc. Everyone recommends to install an antivirus in the system and we mostly follow this. But still we are at risk, so sometime we require to scan our system for a second opinion to make sure that our system is really free from all threats. So here we are giving a list of second opinion virus / malware scanners.

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