What is hphmon04.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the hphmon04.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Hphmon04.exe file information

Windows Task Manager with hphmon04
Hphmon04.exe process in Windows Task Manager

The process known as HPHmon04 belongs to software hp photosmart by Hewlett-Packard (

Description: Hphmon04.exe is not essential for the Windows OS and causes relatively few problems. Hphmon04.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 348,160 bytes (51% of all occurrences), 339,968 bytes or 335,872 bytes. 
It is not a Windows system file. Hphmon04.exe is an unknown file in the Windows folder. The program is not visible. The process is loaded during the Windows boot process (see Registry key: MACHINE\Run). Hphmon04.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 56% dangerous; however you should also read the user reviews.

Recommended: Identify hphmon04.exe related errors

External information from Paul Collins:

Important: Some malware disguises itself as hphmon04.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the hphmon04.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

HP printers Installed process

Summary: Average user rating of hphmon04.exe: based on 7 votes with 1 user comment. 7 users think hphmon04.exe is essential for Windows or an installed application.

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Best practices for resolving hphmon04 issues

A clean and tidy computer is the key requirement for avoiding problems with hphmon04. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the hphmon04.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

hphmon04.exe [all]