What is catsrv.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 catsrv.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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Catsrv.exe file information

The process known as Windows Security Center belongs to software catsrv by Windows© Copyright Microsoft ( (version 1981-2007).

Description: Catsrv.exe is not essential for Windows and will often cause problems. Catsrv.exe is located in a subfolder of the user's profile folder. The file size on Windows 10/8/7/XP is 626,176 bytes. 
The software starts when Windows starts (see Registry key: Run, MACHINE\Run). The catsrv.exe file is not a Windows system file. The program is not visible. The process listens for or sends data on open ports to a LAN or the Internet. Catsrv.exe is able to connect to the Internet and record keyboard and mouse inputs. Therefore the technical security rating is 68% dangerous; however you should also read the user reviews.

Recommended: Identify catsrv.exe related errors

Important: Some malware also uses the file name catsrv.exe, for example Trojan Horse (detected by Symantec), and Trojan:Win32/Malagent (detected by Microsoft). Therefore, you should check the catsrv.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 is dead wrong. Com+ extension
  wez   (further information)

Summary: Average user rating of catsrv.exe: based on 1 vote with 1 user comment. One user thinks it's neither essential nor dangerous.

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Best practices for resolving catsrv issues

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

catsrv.exe [all]