What is atibtmon.exe?

The genuine atibtmon.exe file is a software component of ATI Brightness Monitor by ATI.
Atibtmon.exe is an executable file that belongs to the ATI Brightness Monitor, a program that lets users access brightness options for their displays through the Windows System Tray. This is not an essential Windows process and can be disabled if known to create problems. ATI Technologies Inc. was a Canadian company that developed semiconductor technology. It specialized in the manufacture of graphics processing units and chipsets. It was founded in 1985 by Lee Ka Lau, Francis Lau, Benny Lau, and Kwok Yuen Ho, as Array Technologies Industry. It was bought by Advanced Micro Devices (AMD) for $5.6 billion in 2006 as part of AMD's strategic development of its Fusion generation of computer processors. ATI and its main competitor, Nvidia, forced other manufacturers into narrower roles in the market as they achieved dominance in the graphics processor market. Today, AMD no longer uses the ATI brand name for any of their products. Advanced Micro Devices (AMD) is an American corporation that develops solutions in semiconductor technology and its applications in computer processors, motherboards, graphics processors and embedded systems for business and consumer markets. The company was founded in 1969 by Jerry Sanders and is currently based in Sunnyvale, California, United States.

ATIBtMon stands for Array Technologies Inc. Brightness Monitor

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 atibtmon.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.

Click to Run a Free Scan for atibtmon.exe related errors

Atibtmon.exe file information

Windows Task Manager with atibtmon
Atibtmon.exe process in Windows Task Manager

The process known as ATIBRTMON belongs to software ATI Brightness Monitor by Advanced Micro Devices (

Description: Atibtmon.exe is not essential for the Windows OS and causes relatively few problems. Atibtmon.exe is located in the C:\Windows\System32 folder. The file size on Windows 10/8/7/XP is 118,784 bytes. 
Atibtmon.exe is a trustworthy file from Microsoft. It is not a Windows core file. The program is not visible. Therefore the technical security rating is 15% dangerous; however you should also read the user reviews.

Recommended: Identify atibtmon.exe related errors

Important: Some malware disguises itself as atibtmon.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the atibtmon.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

in Wos8 it is causing runtime to terminate and shutting down programs
  trueknine   (further information)
It keeps requesting that Runtime terminates in a strange way. Suspicios but not dangerous, I don't think any virus would be that blunt
atibtmon.exe is Adobe Acrobat Updater and you can disable application to not start with windows. Run msconfig, and under services tab find and uncheck adobe Updater. Restart!
It's a brightness control file for AMD processors. Safe to terminate, but it will cause you not to have control over brightness on your monitor if you have a laptop. Or you may not be able to, depends on your settings
getting runtime error everytime turned on thyings ant workin left I want it off my computer windows 10
Under Windows 10 the runtime error atibtmon.exe is from a conflict between the Windows power saving settings and the ATI display card's settings. Unplugging your laptop and going to battery or booting on battery triggers this. Easy fix if you make your way to: Power Options, then Change Plan Settings, then Change advanced power settings, then ATI Graphics Power Settings: just set them to maximize performance and let Windows decide the power saving plan. You may need to adjust the display brightness when unplugged in the Windows plan. There's a simple YouTube video on this.
  Ten Ten   (further information)
Have just deleted from my Win 10 Hp Pavilion (AMD Chip)because after changing to Win 10 it caused a runtime error on sleep, or mains lead removal. After this event if MS Edge (new-speak for Internet Explorer)had been open, none of the active links anywhere on the page would work and the programme would have to be shut down and re-started. No unintended consequences so far....
Repaired a laptop and as I dislike bright screens I turned down the brightness and when I did a restart this run time error appeared on the screen after log on. Turned up the brightness afterwards and the run time error went away.
It is NOT Adobe Acrobat Updater. It is AMD's ATi Brightness Monitor (hence the "ATi" bit of the filename. In Windows 10, I just deleted it and it's now fine.
  Lex Angel, TechnoFear I.T.  
Unplugging your laptop and going to battery or booting on battery triggers this.
  Dave B  
On the search for this file as it gave me few messages "atibtmon.exe ended in an unusual way", I got an advertisement to check my computer got its errors and fix them. It was not free as later gave a message after I fool trusted it, and was un-totally removable as the "un-install" actally leaves a folder by the name of the program that cannot be deleted "because is being used by another file". After deleting wgat I could of its cintents, it kep a subfolder with two executable files that I changed their names adding "useless" in the front and changing the .exe to .old, in both files and folder and subfolder, yet still with numerous starts I could not delete them and was getting strange brightness in-brightness in my screen. Then I searched again and found a "service" that was in the screen checking cntrl+alt+ del simultaneously and checked it to stop it and then was able to delete the folder that has a sub-folder and two useless (but very harmful files). AND then restarted the computer.. The so called "service" disappeared and so the error messages. LESSON: The so called free checking of your computer was actually a scam to steal your money and steal more by having you their victim to scam you further many times. The unfortunate part is that it was not detected by Windows-defender of Windows-10 nor by my "Superantispyware" although both were updated today. Watch out for any suggested "Free" fix. They are just scams. Trust only ORIGINAL TRUE Microsoft in this regard.
  Maro Bey  

Rating chart

Summary: Average user rating of atibtmon.exe: based on 10 votes with 11 user comments. 3 users think atibtmon.exe is essential for Windows or an installed application. 2 users think it's probably harmless. 5 users think it's neither essential nor dangerous. 2 users don't grade atibtmon.exe ("not sure about it").

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Best practices for resolving atibtmon issues

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

atibtmon.exe [all]