What is ACMonitor_X73.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 ACMonitor_X73.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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ACMonitor_X73.exe file information

The process known as ACMonitor belongs to software Lexmark (version X73) or ACMonitor by Silitek (

Description: ACMonitor_X73.exe is not essential for Windows and will often cause problems. ACMonitor_X73.exe is located in a subfolder of "C:\Program Files" or sometimes in the "C:\Program Files" folder—usually C:\Program Files\LEXMARKX73\. The file size on Windows 10/8/7/XP is 53,248 bytes. 
The process is loaded during the Windows boot process (see Registry key: MACHINE\Run). It is not a Windows system file. The program has no visible window. Therefore the technical security rating is 50% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can safely remove the program using the uninstall program of Lexmark X73 (Control Panel ⇒ Uninstall a Program).

Recommended: Identify ACMonitor_X73.exe related errors

Important: Some malware camouflages itself as ACMonitor_X73.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the ACMonitor_X73.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

Lexmark X84/X85 Button Monitor. Background task installed by the drivers for the Lexmark X84 or X85 multifunction printer/scanner/copier. This background task monitors the X84/X85 for activity and interacts with ACBTNMGR_X84/85 above for operations involving the PC (e.g. scan to e-mail). Also, for large copy jobs it relays the current copy count back to ACBTNMGR_X84-X85 so you can view it on your PC.
Error message (ACMonitor needs to close, close program) so i type ACMonitor into Google to find out just what this is? OS is Vista and I had just tried keyword here "tried" to install Lexmark X84 drivers with no sucsess.. and now this error thanx slayer108 my hats off to ya
  Dick Fitswell  

Summary: Average user rating of ACMonitor_X73.exe: based on 3 votes with 2 user comments. One user thinks ACMonitor_X73.exe is essential for Windows or an installed application. 2 users think it's neither essential nor dangerous.

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Best practices for resolving ACMonitor_X73 issues

A clean and tidy computer is the key requirement for avoiding problems with ACMonitor_X73. 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 ACMonitor_X73.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

ACMonitor_X73.exe [all]