Zemana AntiMalware 3.0 is a free malware removal tool. The main purpose of this product is to detected and remove malware from your PC. For free.
Having said that, we saw many support request asking why Zemana AntiMalware 3.0 closes when we click on "X"?
For one simple reason.
It doesn't work on the background because it is a free removal tool and we do it for your overall PC health and for better user experience. There is no need for this product to run in the background because there are no additional and unnecessary features on the product that require running in the background.
This product runs only when you keep it open because this is how the product works. So, whenever you suspect you have malware just open Zemana AntiMalware, detected the malware and remove it. Voila, that's it:)
However, you can open it again and again as much as you want. Just keep in mind it runs only when it is opened:)