What is msdntsrv.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 msdntsrv.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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Msdntsrv.exe file information

The process known as Windows DNT Service (version 5.1.2600.0 (xpclient.010817-1148)) belongs to software Microsoft Windows Operating System by Microsoft (

Description: Msdntsrv.exe is not essential for the Windows OS and causes relatively few problems. Msdntsrv.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 38,912 bytes (66% of all occurrences) or 44,544 bytes. 
The program starts when Windows starts (see Registry key: DEFAULT\Run, MACHINE\Run, Run). Msdntsrv.exe is not a Windows core file. Therefore the technical security rating is 52% dangerous.

Recommended: Identify msdntsrv.exe related errors

Important: Some malware disguises itself as msdntsrv.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the msdntsrv.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 msdntsrv issues

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

msdntsrv.exe [all]