ESET is one of the most secure antiviruses on the market that offers excellent protection features, including malware and ransomware protection, anti-theft tool, and banking information security. However, once in a while, ESET Antivirus stops working or hangs. This is a serious problem; your system is vulnerable to online and offline threats if your antivirus is not working properly. This particular issue needs to be resolved as quickly as possible. This issue can be caused due to many reasons; we have to point out a few of these causes and possible solutions.