What is cpuidle.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 cpuidle.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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Cpuidle.exe file information

The process known as CpuIdle belongs to software CpuIdle by Andreas Goetz (

Description: Cpuidle.exe is not essential for the Windows OS and causes relatively few problems. The file cpuidle.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 840,196 bytes (33% of all occurrences), 904,708 bytes, 807,428 bytes or 836,608 bytes. 
There is an icon for this program on the taskbar next to the clock. The file is not a Windows system file. Cpuidle.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 33% dangerous, however you should also read the user reviews.

Uninstalling this variant: There is a possibility to completely remove CpuIdle (Control Panel ⇒ Uninstall a Program).

Recommended: Identify cpuidle.exe related errors

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

information about the cpu
Great CPU cooling program that works in tandem with Motherboard Monitor 5.
  Leo Cavanaugh  
it flipped ouyt the pc slowing it down
  sjoerd NL  
Kühlt die CPU um ca. 10Grad und spart 30Watt Strom! Gutes Programm für AMD Athlon XP Prouessorten.
CPU Cooling SoftWare
When other programs aren't using the CPU, CpuIdle.exe repeatedly executes the HLT instruction, allowing the CPU to use less energy and generate less heat.
  Olego   (further information)

Summary: Average user rating of cpuidle.exe: based on 5 votes with 6 user comments. 5 users think cpuidle.exe is essential for Windows or an installed application. One user is not sure about it.

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Best practices for resolving cpuidle issues

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

cpuidle.exe [all]