What is MAS.FreeStyleLibre.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 MAS.FreeStyleLibre.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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MAS.FreeStyleLibre.exe file information

The process known as FreeStyle Libre or FreeStyleLibre MAS Server belongs to software FreeStyle Libre by unknown.

Description: MAS.FreeStyleLibre.exe is not essential for the Windows OS and causes relatively few problems. The MAS.FreeStyleLibre.exe file is located in a subfolder of "C:\Program Files (x86)" or sometimes in a subfolder of C:\ (normally C:\Program Files (x86)\FreeStyle Libre\ or C:\Program Files (x86)\FreeStyle Libre\FreeStyle Libre\). Known file sizes on Windows 10/8/7/XP are 285,184 bytes (50% of all occurrences), 4,538,368 bytes or 283,648 bytes. 
The process runs as service FreeStyleLibre MAS Server in the background: Support for Abbott Diabetes Care Apollo meters.
There is no description of the program. The program is not visible. It is not a Windows core file. The process listens for or sends data on open ports to a LAN or the Internet. Therefore the technical security rating is 71% dangerous; however you should also read the user reviews.

Uninstalling this variant: You could safely remove the program using the uninstall program of FreeStyle Libre (Control Panel ⇒ Uninstall a Program).

Recommended: Identify MAS.FreeStyleLibre.exe related errors

Important: Some malware camouflages itself as MAS.FreeStyleLibre.exe. Therefore, you should check the MAS.FreeStyleLibre.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

kein Virus, Bestandteil einer Diabetes-Software
App for glycemia reader FreStyle libre
Freestyle ist ein Programm zur Darstellung und Bewertung von Blutzucker-Messungen, die Diabetiker mehrfach abnehmen.

Summary: Average user rating of MAS.FreeStyleLibre.exe: based on 3 votes with 3 user comments. 3 users think MAS.FreeStyleLibre.exe is essential for Windows or an installed application. One user is not sure about it.

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Best practices for resolving MAS issues

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

MAS.FreeStyleLibre.exe [all]