What is RzKLService.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 RzKLService.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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RzKLService.exe file information

The process known as RzKLService belongs to software Razer Cortex or Razer Game Booster by Razer (

Description: RzKLService.exe is not essential for the Windows OS and causes relatively few problems. The file RzKLService.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\ or in a subfolder of the user's "Documents" folder. Known file sizes on Windows 10/8/7/XP are 105,448 bytes (45% of all occurrences), 129,168 bytes, 133,376 bytes, 132,864 bytes or 106,472 bytes. 
The program is not visible. The file is a Verisign signed file. The file is digitally signed. The RzKLService.exe file is not a Windows system file. RzKLService.exe is able to monitor applications. Therefore the technical security rating is 21% dangerous, however you should also read the user reviews.

Uninstalling this variant: In case of any problems with RzKLService.exe, you could also do the following:
  1) uninstall the software Razer Cortex or Razer Game Booster using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program)
  2) look for help on the website
  3) update the program to the latest version.

Recommended: Identify RzKLService.exe related errors

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

Razer Game Booster.
  Romulo de Sousa Mangueira   (further information)
I know it is related the Razer Cortex utility, just wanted to know if it needed to be launched on startup or not

Summary: Average user rating of RzKLService.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 RzKLService issues

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

RzKLService.exe [all]