defwatch.exe is a part of Norton Antivirus Corporate Edition, and is responsible for monitoring the virus definition files and initiating processes to bring them up to date if they aren't.
If you need any technical advice or assistance, call our Live Experts toll-free on one of the numbers below:
Non-system processes like defwatch.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