What is Settings.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 Settings.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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Settings.exe file information

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

The process known as MTUNNEL belongs to software MTUNNEL or Lenovo Settings by MZANSI or Lenovo Group (

Description: Settings.exe is not essential for the Windows OS and causes relatively few problems. Settings.exe is located in a subfolder of C:\. Known file sizes on Windows 10/8/7/XP are 1,254,912 bytes (66% of all occurrences) or 1,160,192 bytes. 
The program has a visible window. There is no file information. The application starts when Windows starts (see Registry key: User Shell Folders). The file is not a Windows system file. Therefore the technical security rating is 36% dangerous.

Recommended: Identify Settings.exe related errors

If Settings.exe is located in a subfolder of "C:\Program Files", the security rating is 42% dangerous. The file size is 72,704 bytes (50% of all occurrences) or 1,395,200 bytes. The program has no visible window. The file is not a Windows core file. Settings.exe is able to connect to the Internet and record keyboard and mouse inputs.

Uninstalling this variant: If you encounter difficulties with Settings.exe, you could also uninstall the program using the Control Panel ⇒ Uninstall a ProgramMTUNNEL.

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

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

Settings.exe [all]