hpwamain.exe is a HPWAMain Module
from Hewlett-Packard Development Company, L.P.
belonging to HP Wireless Assistant
This is usually found in the following path C:\Program Files\Hewlett-Packard\HP Wireless Assistant\HPWAMain.exe
Non-system processes like hpwamain.exe originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that over time your registry suffers fragmentation and accumulates invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues