I have faced the same issue on my Windows 10 laptop before a couple of weeks, I was using Avast at that time, decided to buy it after reading this guide. But since I started using ESET NOD32 latest version I have gotten rid of all kinds of problems.
I am using Kaspersky Endpoint Security right now but it does slow down my system that's why I was thinking to install ESET NOD32...Will It slow down my system or not?