Net protecter is often a very known and big selling antivirus.at a lowest price point.earlier I used to have a net protecter but now I switched to quick eal total security.it ia a not a bad antivirus and specially at what price they are selling it.
Here are some points to distinguish with.
Functionality.
IT works well with every windows os.aome people says that it works well with windows 10.i have not used ot sonce 2 years so no idea whether it works with windows 10 or not.
This antivirus has a very user friendly interface so those who have least knowledge can also use this antivirus.its simple & effective.
Installation
U will have buy key first which comes with cd bit ita recommended that if possible u download a new version from web.after that installation and all.the best part is that u can so a telephonic activation without any internet access.
Features
Dont have great security features but what so ever
They have can protect your pc from malware.spyware.and its cheap.so dont expect features like quick heal gives.
Update.
Once u are done with installation eveey antivirus needs timely updation.in case of npav u can get these updates through any well known computer shop through a data transfer device.