What is MMDx64Fx.exe?

The genuine MMDx64Fx.exe file is a software component of Acer Launch Manager by Acer.
Acer Launch Manager is a keyboard customization tool. MMDx64Fx.exe is a driver file that belongs to the Acer Launch Manager. This is not an essential Windows process and can be disabled if known to create problems. The Acer Launch Manager lets users configure each key on the keyboard. The program can be used to customize the play, pause, stop, volume and Windows function keys or 'FN' keys. The program also provides feedback to changes in volume, screen brightness levels and the Wi-Fi or the Bluetooth connection status. This program usually launches at startup and may slow down the system during the bootup process. Acer was founded in 1976 by Stan Shih, Carolyn Yeh and five others as Multitech in 1976. It is a Taiwanese hardware and electronics giant that produces laptops, desktops, smart phones, displays, storage devices and peripherals. Acer was the fourth largest global vendor of personal computers in 2013 and generates an annual revenue of more than $16 billion. The company is headquartered in Xizhi, New Taipei City, Taiwan.

MMDx64Fx stands for Multimedia Display Toggle Hotkey x64 Commander

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 MMDx64Fx.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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MMDx64Fx.exe file information

Windows Task Manager with MMDx64Fx
MMDx64Fx.exe process in Windows Task Manager

The process known as MMDx64Fx Application belongs to software Launch Manager or Dritek Display Toggle Hotkey (version 64-bit Commander) or MMDx64Fx Application by Dritek System (

Description: MMDx64Fx.exe is not essential for the Windows OS and causes relatively few problems. The MMDx64Fx.exe file is located in a subfolder of "C:\Program Files (x86)" or sometimes in a subfolder of the user's profile folder (usually C:\Program Files (x86)\Launch Manager\). Known file sizes on Windows 10/8/7/XP are 73,808 bytes (27% of all occurrences), 72,712 bytes and 11 more variants. 
The program has no visible window. MMDx64Fx.exe is a Verisign signed file. The file has a digital signature. The file is not a Windows core file. Therefore the technical security rating is 22% dangerous; but you should also compare this rating with the user reviews.

Uninstalling this variant: In case you experience problems using MMDx64Fx.exe, you can also safely remove the program using the uninstall program of Launch Manager (Control Panel ⇒ Uninstall a Program).

Recommended: Identify MMDx64Fx.exe related errors

Important: Some malware camouflages itself as MMDx64Fx.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the MMDx64Fx.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

Ist bei mir vorhanden, braucht 3 kb arbeitsspeicher und wird von bitdefender nicht angezeigt. Dennoch läuft bei mir nicht alles rund.
Kann man Löschen braucht man nicht ;)

2 users don't grade MMDx64Fx.exe ("not sure about it").

Do you have additional information? Help other users!

Best practices for resolving MMDx64Fx issues

A clean and tidy computer is the key requirement for avoiding problems with MMDx64Fx. 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 MMDx64Fx.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

MMDx64Fx.exe [all]