What is CCleaner.exe?

CCleaner.exe file information

The process known as CCleaner or ccleaner belongs to software CCleaner or MyCleaner by Piriform (www.piriform.com) or Piriform Software or CCleaner.com.

Description: CCleaner.exe is not essential for the Windows OS and causes relatively few problems. CCleaner.exe is located in a subfolder of "C:\Program Files (x86)" or sometimes in a subfolder of the user's profile folder or in the "C:\Program Files" folder—typically C:\Program Files (x86)\CCleaner\. Known file sizes on Windows 10/11/7 are 13,179,660 bytes (33% of all occurrences), 5,489,944 bytes and 72 more variants.  
CCleaner.exe is not a Windows system file. The file is certified by a trustworthy company. It is a Verisign signed file. The application starts when Windows starts (see Registry key: Run, TaskScheduler, DEFAULT\Run, MACHINE\Run). The program is not visible. CCleaner.exe is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 25% dangerous; but you should also compare this rating with the user reviews.

Recommended: Identify CCleaner.exe related errors

• If CCleaner.exe is located in a subfolder of C:\, the security rating is 33% dangerous. The file size is 4,826,904 bytes (25% of all occurrences), 13,179,660 bytes, 5,496,600 bytes or 155,648 bytes. The CCleaner.exe file is not a Windows core file. The file is certified by a trustworthy company. The application starts upon Windows startup (see Registry key: Run, TaskScheduler, DEFAULT\Run, MACHINE\Run). CCleaner.exe is able to record keyboard and mouse inputs and monitor applications.
  Uninstalling this variant: There is a possibility to do the following:
  

  • look for help on the www.piriform.com website
  • completely remove CCleaner (Control Panel ⇒ Uninstall a Program)
• If CCleaner.exe is located in C:\, the security rating is 26% dangerous. The file size is 13,179,660 bytes. The program has a visible window. The program listens for or sends data on open ports to a LAN or the Internet. The CCleaner.exe file is not a Windows system file. CCleaner.exe is able to record keyboard and mouse inputs and monitor applications.

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