What is MAHostService.exe?

The genuine MAHostService.exe file is a software component of ATT Management Agent by Alcatel-Lucent.
Installed with AT&T's mobile service, this application runs in the background and starts with Windows. It allows you to manage aspects of your AT&T connection to the internet. Connection management includes mobile 3G or 4G, as well as wifi settings. It gives you the option of streamlining certain aspects of your experience, including prioritizing wifi connections, and allowing for automatic connection to public AT&T hotspots. Alcatel-Lucent was founded in 2006 through a merger between Alcatel and Lucent Technologies. Located in France, they are one of the world's leading telecommunications companies.

MAHostService stands for Management Agent Host Service

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 MAHostService.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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MAHostService.exe file information

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

The process known as MAHostService belongs to software BT Desktop Help or ATT Management Agent or AT&T Troubleshoot & Resolve or Bell Internet Check-Up or Windstream Support Center by Alcatel-Lucent (

Description: MAHostService.exe is not essential for the Windows OS and causes relatively few problems. MAHostService.exe is located in a subfolder of "C:\Program Files (x86)"—typically C:\Program Files (x86)\BT Broadband Desktop Help\btbb\MA\\ma\bin\ or C:\Program Files (x86)\ATT\\ma\bin\. Known file sizes on Windows 10/8/7/XP are 321,024 bytes (89% of all occurrences) or 319,488 bytes. 
The process is a service, and the service name is Bell MAHostService: Bell Management Agent Host Service.
The program is not visible. The MAHostService.exe file is not a Windows system file. Therefore the technical security rating is 40% dangerous.

Uninstalling this variant: There is a possibility to uninstall the software BT Desktop Help or ATT Management Agent using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program).

Recommended: Identify MAHostService.exe related errors

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


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Best practices for resolving MAHostService issues

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

MAHostService.exe [all]