What is SessionManager.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 SessionManager.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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SessionManager.exe file information

Windows Task Manager with SessionManager
SessionManager.exe process in Windows Task Manager

The process known as SessionManager.exe belongs to software CSS-Corporate-BESS_8_0_3 or CSS-Corporate-BESS_8_0_4 by France Telecom SA (

Description: SessionManager.exe is not essential for the Windows OS and causes relatively few problems. The file SessionManager.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 107,248 bytes (37% of all occurrences), 140,016 bytes, 102,400 bytes, 141,440 bytes or 131,824 bytes. 
The program has a visible window. The software has no file description. The application is loaded during the Windows boot process (see Registry key: MACHINE\Run). The SessionManager.exe file is not a Windows system file. The file has a digital signature. Therefore the technical security rating is 24% dangerous.

Recommended: Identify SessionManager.exe related errors

Important: Some malware camouflages itself as SessionManager.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the SessionManager.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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One user thinks SessionManager.exe is dangerous and recommends removing it.

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Best practices for resolving SessionManager issues

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

SessionManager.exe [all]