What is sqlservr.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 sqlservr.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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Sqlservr.exe file information

Windows Task Manager with sqlservr
Sqlservr.exe process in Windows Task Manager

The process known as SQL Server Windows NT (version - 64 Bit) or Microsoft SQL Server Desktop Engine or MSSQL$SONY_MEDIAMGR or Windows Internal Database (MICROSOFT##SSEE), Windows Internal Database (MICROSOFT##SSEE) or MSSQL$PTPROFESSIONALDB or MSSQL$MICROSOFTBCM or Microsoft SQL Server Desktop Engine (MICROSOFTSMLBIZ) or Microsoft SQL Server Desktop Engine (UPSWSDBSERVER)

belongs to software Microsoft SQL Server (version 2005, 2005 Express Edition, 2000, 2008, 2005 Express, 2008 Database Engine, 2005 Tools Express) or Microsoft SQL Server Desktop or Microsoft SQL Server Native or Microsoft SQL Server Desktop Engine or Microsoft SQL Server VSS Writer or Microsoft SQL Server Native Client or SQL Server (version 2008 R2 Database Engine, 2014 Database Engine Services) or SQL Server (SQLEXPRESS) or MSSQL$MICROSOFTSMLBIZ

by Microsoft (

Description: Sqlservr.exe is not essential for the Windows OS and causes relatively few problems. The sqlservr.exe file is located in a subfolder of "C:\Program Files" (usually C:\mssql7\Binn\ or C:\Program Files\Microsoft SQL Server\MSSQL\Binn\). Known file sizes on Windows 10/8/7/XP are 13,179,660 bytes (59% of all occurrences), 7,520,337 bytes and 20 more variants. 
The program has no visible window. It is not a Windows core file. The sqlservr.exe file is digitally signed. Sqlservr.exe is able to monitor applications and connect to the Internet. Therefore the technical security rating is 36% dangerous, however you should also read the user reviews.

Uninstalling this variant: In the event of any problems with sqlservr.exe, you can also do the following:
  1) uninstall Microsoft SQL Server Native software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7)
  2) ask Customer Support to assist you
  3) find out if there is a newer version available.

Recommended: Identify sqlservr.exe related errors

Important: Some malware camouflages itself as sqlservr.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example Backdoor.Locobad.B (detected by Symantec), and Trojan:Win32/Dorv.A (detected by Microsoft). Therefore, you should check the sqlservr.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

A virus can be named sqlservr.exe, but SQL Server is one of the most reputable programs in the world. Hence why it's popular for malware to masquerade as it.
exe file to run Microsoft SQL Server.
Microsoft SQL Server, belongs to Visual Studio
Be careful if you end this process in Task Manager. This is used widely for many modern softwares, and may result in poor performance if it is closed.
Typically uses a great amount of memory also can slow down your machine, and some viruses use this name to 'hide' it from you, however this is not a significant security risk. To get rid of it, go to the all programs list and remove "Microsoft SQL Server Desktop Engine", or possibly some variation
  mgslayer   (further information)
Microsoft SQL Server Service
It's a Microsoft Sql Server and not dangerous, may be harmful to turn it off
it's a virus that made my computer run slow
  Brian   (further information)
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of sqlservr.exe: based on 48 votes with 9 reviews. 33 users think sqlservr.exe is essential for Windows or an installed application. 6 users think it's probably harmless. 2 users think it's neither essential nor dangerous. One user suspects danger. 6 users think sqlservr.exe is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving sqlservr issues

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

sqlservr.exe [all]