wkufind.exe is a process relating to Microsoft Picture-It. This process will attempt to dial the Internet, if not already connected in order to find an update for this product.
Non-system processes like wkufind.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