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Application using this process: HP printing
Recommended: Scan your system for invalid registry entries.
What is c4400_print_4x6.exe doing on my computer?
If you have an HP branded printer, C4400_print_4x6.exe is one of the legitimate processes that come with its installation package. If you are no longer using your HP device, but still have C4400_print_4x6.exe running on your PC, you can possibly remove it without causing any harm.
Non-system processes like c4400_print_4x6.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.