What is eTSrv.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 eTSrv.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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ETSrv.exe file information

The process known as eToken Notification Service belongs to software eToken Run Time Environment or RTE by Aladdin Knowledge Systems (

Description: ETSrv.exe is not essential for the Windows OS and causes relatively few problems. The file eTSrv.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 90,112 bytes (75% of all occurrences) or 143,360 bytes. 
The program is not visible. It is not a Windows core file. The software can be removed using the Control Panel's Add\Remove programs applet. ETSrv.exe is able to hide itself and monitor applications. Therefore the technical security rating is 27% dangerous, however you should also read the user reviews.

Uninstalling this variant: The software vendor offers the option to uninstall the associated program (Start > Control Panel > Uninstall a Program > eToken Run Time Environment).

Recommended: Identify eTSrv.exe related errors

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

Enable the use of the security product - eToken
  Ariel   (further information)
no problems at all
  Benne de Jong  
Aladdin eToken service
    (further information)
For use with eToken(pro)

Summary: Average user rating of eTSrv.exe: based on 4 votes with 4 user comments. 4 users think eTSrv.exe is essential for Windows or an installed application.

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Best practices for resolving eTSrv issues

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

eTSrv.exe [all]