What is ACMonitor_X83.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_X83.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_X83.exe file information

Windows Task Manager with ACMonitor_X83
ACMonitor_X83.exe process in Windows Task Manager

The process known as ACMonitor belongs to software Jetsoft Development Company ACMonitor by Jetsoft Development Company (

Description: ACMonitor_X83.exe is not essential for Windows and will often cause problems. The file ACMonitor_X83.exe is located in a subfolder of "C:\Program Files". The file size on Windows 10/8/7/XP is 40,960 bytes. 
The program has no visible window. The software starts upon Windows startup (see Registry key: MACHINE\Run). The file is not a Windows system file. Therefore the technical security rating is 50% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you have any problems with ACMonitor_X83.exe, you can safely remove the program using the uninstall program of Lexmark X83 (Control Panel ⇒ Uninstall a Program).

Recommended: Identify ACMonitor_X83.exe related errors

Important: Some malware camouflages itself as ACMonitor_X83.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the ACMonitor_X83.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

printer driver of Lexmark 83x and others
sometimes in inexplicably takes up all my pc processing cpu and drives up my cpu to 100% even when I am not printing. I do have a lexmark printer.
  e soloff  
Monitorts keypad inputs from LexMark x83 All-In-One printers. Shouldn't be needed if you don't use the printer's keypad for scanning.
ACMonitor_X83 is a driver for a LExmark Printer specifcally for the X83. The initial version was created in 2001, and revised in 2003 and can be downloaded from the LExmark site. I am currently having issues with my lexmark printer and has to do with Logging off and then logging on as a different user, it looses the printer
Needed if you have a Lexmark X83 and you use the buttons on the printer. Otherwise (or if it is over 80% CPU for 30 sec or over 10,000 RAM) you can end it.
Only started having this problem after we installed a new Lexmark 5650 Multifunction Printer
  Katherine Webster  

Summary: Average user rating of ACMonitor_X83.exe: based on 2 votes with 6 user comments. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous. 4 users don't grade ACMonitor_X83.exe ("not sure about it").

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Best practices for resolving ACMonitor_X83 issues

A clean and tidy computer is the key requirement for avoiding problems with ACMonitor_X83. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the ACMonitor_X83.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

ACMonitor_X83.exe [all]