What is usbcopynotifyclient.exe doing on my computer?
usbcopynotifyclient.exe is a USB CopyNotify Client
belonging to CygNET USB CopyNotify! : Client Application
from CygNET Systems Pvt. Ltd.
Non-system processes like usbcopynotifyclient.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.