What is Mtlstrm?

Mtlstrm.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if Mtlstrm.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for Mtlstrm drivers in need of updating

Mtlstrm.sys file information

The process known as Data pump driver belongs to software Modem or Soft Modem by Smart Link (

Description: Mtlstrm.sys is not essential for the Windows OS and causes relatively few problems. Mtlstrm.sys is located in a subfolder of C:\Windows\System32\drivers. Known file sizes on Windows 10/8/7/XP are 1,396,048 bytes (60% of all occurrences), 1,464,912 bytes or 1,464,848 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. There is no file information. The program has no visible window. The service has no detailed description. It is not a Windows core file. The application is not active. Therefore the technical security rating is 17% dangerous; however you should also read the user reviews.

Recommended: Identify Mtlstrm.sys related errors

If Mtlstrm.sys is located in the C:\Windows\System32\drivers folder, the security rating is 2% dangerous. The file size is 1,309,184 bytes (66% of all occurrences) or 1,302,680 bytes. Mtlstrm.sys is a file with no information about its developer. The program has no visible window. The program is not active. There is no detailed description of this service. The file is a trustworthy file from Microsoft. Mtlstrm.sys is a Windows core system file. Mtlstrm.sys appears to be a compressed file.

Important: Some malware camouflages itself as Mtlstrm.sys. Therefore, you should check the Mtlstrm.sys 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

Drivers for SmartLink Modem software
where to find file

Summary: Average user rating of Mtlstrm.sys: based on 1 vote with 2 user comments. One user thinks Mtlstrm.sys is essential for Windows or an installed application. One user is not sure about it.

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Best practices for resolving Mtlstrm issues

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

Mtlstrm.sys [all]