king47915 :
I'm using Avast. But not sure is it really protecting my computer. Thinking about getting a VPN.
Um -- VPNs do not protect your computer from malware infection. They are no substitute for antivirus software.
VPNs do only two things: a) partly encrypt internet communications that are not already encrypted and b) make it appear, if you choose, that your computer is somewhere it's not. That's it.
Can I ask what kind of machine you're running, and what its operating system is?