avginet.exe is a process associated with Avg Anti-Virus from Grisoft.
It detects and downloads updates for the virus definitions. If you block or remove this process your Avg Anti-Virus will become out of date.
Non-system processes like avginet.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues