What is CLIStart.exe?

The genuine CLIStart.exe file is a software component of AMD Catalyst by ATI.
CLIStart.exe is an executable file that belongs to AMD Catalyst, a device driver and utility software package meant for AMD's graphics cards. This is not an essential Windows process and can be disabled if known to create problems.

AMD Catalyst is a program designed for the Windows platform that enables AMD APUs and GPUs to perform faster. The software offers over twenty features and claims up to 19% performance increase on AMD Radeon graphics and up to 29% on AMD APUs.

Advanced Micro Devices (AMD) is an American corporation that develops solutions in semiconductor technology and its applications in computer processors, motherboards, graphics processors and embedded systems for business and consumer markets. The company was founded in 1969 by Jerry Sanders and is currently based in Sunnyvale, California, United States.

CLIStart stands for AMD Catalyst Launcher Interface Start

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 CLIStart.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 CLIStart.exe related errors

CLIStart.exe file information

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

The process known as Catalyst® Control Center Launcher or ccc-core-static or ATI Catalyst Control Center or StartCCC or AMD Catalyst Control Center belongs to software Catalyst Control Center - Branding or Catalyst Control Center or or OEM Application Profile or ccc-core-static or ccc-Branding or ATI Catalyst Control Center by Advanced Micro Devices ( or ATI (

Description: CLIStart.exe is not essential for the Windows OS and causes relatively few problems. CLIStart.exe is located in a subfolder of "C:\Program Files (x86)" (mostly C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static\ or C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static\amd64\). Known file sizes on Windows 10/8/7/XP are 98,304 bytes (17% of all occurrences), 767,176 bytes and 41 more variants. 
The program has a visible window. The software is loaded during the Windows boot process (see Registry key: MACHINE\Run, Run). CLIStart.exe is not a Windows core file. You can uninstall this program in the Control Panel. CLIStart.exe is able to monitor applications. Therefore the technical security rating is 6% dangerous, but you should also take into account the user reviews.

Uninstalling this variant: If you still experience problems with CLIStart.exe, you can do the following:

Recommended: Identify CLIStart.exe related errors

If CLIStart.exe is located in a subfolder of the user's profile folder, the security rating is 12% dangerous. The file size is 767,176 bytes (40% of all occurrences), 641,664 bytes, 766,208 bytes or 642,304 bytes. The file is a Verisign signed file. It is digitally signed. The software starts when Windows starts (see Registry key: MACHINE\Run, Run). The CLIStart.exe file is not a Windows system file. You can uninstall this program in the Control Panel.

Important: Some malware camouflages itself as CLIStart.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example Virus.Win32.Sality.gen or Virus.Win32.Virut.ce (detected by Kaspersky), and PE_SALITY.RL or PE_VIRUX.K (detected by TrendMicro). Therefore, you should check the CLIStart.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

Located in Program Files\ATI Technologies\ATI ACE, this is for the HD graphics card in my laptop.
This running in the background will become a system hog, Recommend disabling it and reenabling it when needed.
For me it is in "C:\Program Files(x86)\ATI\ATI.ACE\Core-Static\CLIStart.exe"
I have it installed on my Dell XPS 8500 CPU Type QuadCore Intel Core i5-3450, 3300 MHz (33 x 100) Motherboard Chipset Intel Panther Point H77, Intel Ivy Bridge System Memory 12183 MB (DDR3-1600 DDR3 SDRAM) Video Adapters AMD Radeon HD 7700 Series (2048 MB) Intel(R) HD Graphics (2112 MB). I do alot of gaming so I find it very helpful.
  M0B33R   (further information)
this for pcs with ati g cards and its not neded
  Robert Rajic  
Used for Ati graphics Cards
  Darrell Thomas  
ATI Catalyst Control Center - loads slow in windows XP
ATI Control Panel
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of CLIStart.exe: based on 40 votes with 9 reviews. 34 users think CLIStart.exe is essential for Windows or an installed application. One user thinks it's probably harmless. 4 users think it's neither essential nor dangerous. One user suspects danger. 2 users don't grade CLIStart.exe ("not sure about it").

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Best practices for resolving CLIStart issues

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

CLIStart.exe [all]