If you have installed a good antivirus product on your PC and then there are very few chances that your PC would get infected by malware. But in some rare situations some newer and unknown malicious programs might still be able to slip under the radar and manage to cause damage in your PC. For this reason, you should scan your PC with a secondary and preferably a portable antivirus solution to make sure that your PC stays clean even if your primary security product fails to check the infection in time.
A good portable security product that you can use alongside your main security solution is Zemana AntiMalware. The portable edition of the program is available to be used with a premium license that is valid for 15 days. Since it is a portable program, you can just download and launch it to start scanning your PC.
The first thing that Zemana AntiMalware does is check for signature updates and performs an update if it is available. After the update, you can choose one of the scans available (Smart scan or Deep scan). The smart scan scans only a few important areas on your PC while the deep scans performs a thorough scan of your PC.
During the scan, the Zemana AntiMalware window color stays grayish blue until it detects a malicious object on your PC. As soon as it finds a malware on your PC, the window switches to a bright red color. After the scan is complete, you can choose to repair each of these harmful objects detected on your PC by selecting the Repair action for these objects and then clicking on the Next button.
In the settings for Zemana AntiMalware portable, you can enable the real-time scanning too. The real-time scanning would block any threats before they can cause any harm to your PC. You can also enable the Pandora cloud-scanning technology to increase the detection of 0-day malware and ransom-ware that would otherwise stay undetected for one or two days.
You can download Zemana AntiMalware from https://www.zemana.com/Download.