What is PACTray.exe?

The genuine PACTray.exe file is a software component of PixArt Camera Tray by PixArt Imaging Incorporation.
PACTray.exe is an executable file associated with the PixArt Camera Tray program. This process allows a shortcut to the PixArt program from the system tray. This is not an essential Windows process and can be disabled if known to create problems. PixArt is a Taiwanese company that specializes in the design, research, production, and sales of CMOS image sensors and integrated chips (ICs). PixArt incorporates its image sensors with proprietary technology, and is able to provide low cost, yet quality solutions. The company was founded in July 1998.

PACTray stands for PixArt Camera Tray

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 PACTray.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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PACTray.exe file information

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

The process known as PixArt Camera Tray belongs to software PixArt Camera Tray by PixArt Imaging Incorporation (

Description: PACTray.exe is not essential for the Windows OS and causes relatively few problems. PACTray.exe is located in a subfolder of C:\Windows. The file size on Windows 10/8/7/XP is 319,488 bytes. 
It is an unknown file in the Windows folder. The program is not visible. The file is not a Windows system file. The process is loaded during the Windows boot process (see Registry key: MACHINE\Run). PACTray.exe is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 57% dangerous.

Recommended: Identify PACTray.exe related errors

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


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Best practices for resolving PACTray issues

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

PACTray.exe [all]