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Application using this process: Windows printer
Recommended: Scan your system for invalid registry entries.
What is ep0nm40f.dll doing on my computer?
EP0NM40F.DLL is a printer driver for Epson printers, as part of the Driver Store File Repository of the Windows installation folder. Files in this folder are used for the quick installation of Epson branded printers upon their first connection to the computer.
Non-system processes like ep0nm40f.dll 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.