wudfhost.exe is a Windows Driver Foundation - User-mode Driver Framework Host Process from Microsoft Corporation belonging to Microsoft® Windows® Operating System.
This process is needed for the relative programme to run properly and so removal is not recommended.
Non-system processes like wudfhost.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