What is concentr.exe?

The genuine concentr.exe file is a software component of Citrix Connection Center by Citrix.
The Citrix Connection Center is a server-based computing technology that allows applications to be run without the need to download and install them. Concentr.exe runs the core process for the Citrix Connection Center. This is not an essential process for Windows and can be disabled if known to create problems. The Citrix Connection Center allows remote server applications to behave as local applications. The program enables users to run and terminate applications, sign on, log off or disconnect the session. Connection Center works in tamdem with Citrix Receiver and Redirector to provide seamless cloud computing, and are required to access Citrix cloud data. Citrix Systems, Inc. is an American company that develops software solutions in networking, application and desktop virtualization, server technology, cloud-based computing, and offers software as a service (SaaS). Citrix was established in 1989, originally as Citrus, by Ed Iacobucci, a former IBM developer. The company soon developed Citrix Multiuser, a port for OS/2, which used Independent Computing Architecture (ICA) that allowed multiple simultaneous users to access server applications, even from computers not built to run OS/2. Citrix currently employs 9,000 people and is headquartered in Santa Clara, California, USA.

ConCentr stands for Citrix Connection Center

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 concentr.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.

Click to Run a Free Scan for concentr.exe related errors

Concentr.exe file information

Windows Task Manager with concentr
Concentr.exe process in Windows Task Manager

The process known as Citrix online plug-in Connection Center or Citrix Connection Center belongs to software Citrix online plug-in or Citrix ICA Client or Citrix Receiver or Citrix Receiver(USB) by Citrix Systems (

Description: Concentr.exe is not essential for the Windows OS and causes relatively few problems. Concentr.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 103,768 bytes (17% of all occurrences), 300,472 bytes and 13 more variants. 
The file has a digital signature. The file is not a Windows core file. The program is loaded during the Windows boot process (see Registry key: MACHINE\Run). You can uninstall this program in the Control Panel. The file is a Verisign signed file. The program has no visible window. Concentr.exe is able to connect to the Internet. Therefore the technical security rating is 18% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you encounter difficulties with concentr.exe, you can do the following:
  1) remove the entire program Citrix online plug-in or Online Plug-in using Windows Control Panel
  2) look for help on the website.

Recommended: Identify concentr.exe related errors

Important: Some malware camouflages itself as concentr.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the concentr.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

This software from Citrix Systems, along with receiver.exe and redirector.exe, provide cloud-based access to data and apps. Unless you remove all three fia Windows Task Manager, they tend to reinstall themselves. If you don't need to access Citrix cloud data,. these are safe to delete.
  Craig   (further information)
Die Datei f├╝hrt in Zusammenhang mit Windows 10 zu einem schwarzen Sperrbildschirm!
  gwyned   (further information)

Summary: Average user rating of concentr.exe: based on 1 vote with 2 user comments. One user thinks it's probably harmless. One user is not sure about it.

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Best practices for resolving concentr issues

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

concentr.exe [all]