What is oodtray.exe?

The genuine oodtray.exe file is a software component of O&O Defrag Professional Edition by O&O Software GmbH.
The file belongs to the O&O Defrag Professional program designed to delete free space on hard disks to prevent parts of confidential data left over from partially-deleted or temporary files and to improve general performance of a computer. When Windows saves data file fragments are located throughout the hard disk and this slows down access times. Defragmentation corrects this by rearranging data and speeding up access to data. This not only saves the user time but it reduces wear on hard disks and extends life expectancy. O&O Software is a German company that was established in 1997.

OODTray stands for OO Defrag TrayIcon (Win32)

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 oodtray.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 oodtray.exe related errors

Oodtray.exe file information

Windows Task Manager with oodtray
Oodtray.exe process in Windows Task Manager

The process known as O&O Defrag TrayIcon (Win32) or O&O Defrag TrayIcon (version (x64)) belongs to software O&O Defrag Professional Edition or O&O Defrag Professional by O&O Software GmbH (

Description: Oodtray.exe is not essential for Windows and will often cause problems. Oodtray.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 2,512,392 bytes (69% of all occurrences), 2,524,416 bytes, 2,528,512 bytes, 2,553,088 bytes or 2,540,800 bytes. 
The program can be removed using the Control Panel's Add\Remove programs applet. Oodtray.exe is a Verisign signed file. The oodtray.exe file is certified by a trustworthy company. It is not a Windows system file. The application starts upon Windows startup (see Registry key: MACHINE\Run). Oodtray.exe is able to connect to the Internet and record keyboard and mouse inputs. Therefore the technical security rating is 13% dangerous, however you should also read the user reviews.

Uninstalling this variant: In case of problems with oodtray.exe, you can uninstall the associated program (Start > Control Panel > Uninstall a Program > O&O Defrag Professional Edition or O&O Defrag Professional).

Recommended: Identify oodtray.exe related errors

Important: Some malware disguises itself as oodtray.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the oodtray.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

oodtray.exe belongs to O&O Defrag TrayIcon developed by O&O Software GmbH. The process is a system tray access to disk defragmentation software.

Summary: Average user rating of oodtray.exe: based on 2 votes with 1 user comment. One user thinks it's probably harmless. One user suspects danger.

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Best practices for resolving oodtray issues

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

oodtray.exe [all]