O&O Defrag Professional O&O Defrag Professional

How to uninstall O&O Defrag Professional from your PC

You can find on this page detailed information on how to remove O&O Defrag Professional for Windows. It was created for Windows by O&O Software GmbH. You can find out more on O&O Software GmbH or check for application updates here. Further information about O&O Defrag Professional can be found at . O&O Defrag Professional is typically set up in the C:\Program Files\OO Software\Defrag folder, but this location may differ a lot depending on the user's decision while installing the application. The full command line for uninstalling O&O Defrag Professional is MsiExec.exe /I{5E35E094-8057-4ABE-A37A-1BD7D9475B4D}. Note that if you will type this command in Start / Run Note you might get a notification for administrator rights. oodcnt.exe is the O&O Defrag Professional's main executable file and it occupies about 4.73 MB (4961072 bytes) on disk.

O&O Defrag Professional contains of the executables below. They occupy 16.67 MB (17475751 bytes) on disk.

  • oodag.exe (1.56 MB)
  • oodcmd.exe (2.27 MB)
  • oodcnt.exe (4.73 MB)
  • oodsvct.exe (61.30 KB)
  • oodtray.exe (4.24 MB)
  • oodwrtlic.exe (96.80 KB)
  • ooliveupdate.exe (992.30 KB)
  • spolszczenie64.exe (2.74 MB) to view all...

This info is about O&O Defrag Professional version 17.0.420 only. You can find below info on other application versions of O&O Defrag Professional: to view all...
Following the uninstall process, the application leaves some files behind on the computer. Some of these are listed below.

Directories that were found:
  • C:\Users\UserName\AppData\Local\O&O\O&O Defrag

The files below remain on your disk by O&O Defrag Professional's application uninstaller when you removed it:
  • C:\Users\UserName\AppData\Local\O&O\O&O Defrag\ocx\ocxdata.oodguisettings
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20150226043228_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20150226043235_O&O Defrag Professional.log

Generally the following registry keys will not be uninstalled:
  • HKEY_CURRENT_USER\Software\O&O\O&O Defrag
  • HKEY_CURRENT_USER\Software\O&O\O&O LiveUpdate\O&O Defrag Professional
  • HKEY_LOCAL_MACHINE\Software\O&O\O&O LiveUpdate\O&O Defrag Professional
  • HKEY_LOCAL_MACHINE\Software\Policies\O&O\O&O Defrag

How to remove O&O Defrag Professional from your computer with Advanced Uninstaller PRO

O&O Defrag Professional is a program released by the software company O&O Software GmbH. Some people choose to erase this program. This can be easier said than done because uninstalling this by hand requires some knowledge related to removing Windows applications by hand. The best QUICK procedure to erase O&O Defrag Professional is to use Advanced Uninstaller PRO. Here are some detailed instructions about how to do this:

1. If you don't have Advanced Uninstaller PRO already installed on your PC, add it. This is good because Advanced Uninstaller PRO is an efficient uninstaller and general utility to maximize the performance of your computer.


  • visit Download Link
  • download the program by pressing the green DOWNLOAD button
  • set up Advanced Uninstaller PRO
2. Start Advanced Uninstaller PRO. It's recommended to take your time to get familiar with Advanced Uninstaller PRO's interface and number of functions available. Advanced Uninstaller PRO is a very useful package of tools.

3. Click on the General Tools category
Go to General Tools

4. Press the Uninstall Programs feature
Go to Uninstall Programs

5. All the applications installed on the PC will be made available to you

6. Scroll the list of applications until you locate O&O Defrag Professional or simply click the Search feature and type in "O&O Defrag Professional". If it exists on your system the O&O Defrag Professional program will be found automatically. Notice that when you click O&O Defrag Professional in the list of programs, the following data about the program is available to you:

  • Star rating (in the lower left corner). This explains the opinion other people have about O&O Defrag Professional, from "Highly recommended" to "Very dangerous".
  • Reviews by other people - Click on the Read reviews button.
  • Details about the app you are about to uninstall, by pressing the Properties button.
For example you can see that for O&O Defrag Professional:

  • The web site of the application is:
  • The uninstall string is: MsiExec.exe /I{5E35E094-8057-4ABE-A37A-1BD7D9475B4D}
7. Press the Uninstall button. A confirmation dialog will show up. accept the uninstall by pressing Uninstall. Advanced Uninstaller PRO will then remove O&O Defrag Professional.
Uninstall O&O Defrag Professional

8. After removing O&O Defrag Professional, Advanced Uninstaller PRO will offer to run an additional cleanup. Click Next to go ahead with the cleanup. All the items that belong O&O Defrag Professional which have been left behind will be detected and you will be asked if you want to delete them. By uninstalling O&O Defrag Professional with Advanced Uninstaller PRO, you can be sure that no Windows registry items, files or directories are left behind on your computer.

Your Windows PC will remain clean, speedy and ready to serve you properly.

Geographical user distribution

  • Windows 8.1 (6.3)
  • Windows 7 (6.1)
  • Windows Vista (6.0)
  • Windows XP (5.1)
  • Windows 8 (6.2)
  • 10.0
Software Application


The text above is not a piece of advice to uninstall O&O Defrag Professional by O&O Software GmbH from your computer, we are not saying that O&O Defrag Professional by O&O Software GmbH is not a good software application. This text only contains detailed info on how to uninstall O&O Defrag Professional supposing you want to. Here you can find registry and disk entries that other software left behind and Advanced Uninstaller PRO discovered and classified as "leftovers" on other users' computers.

2016-08-27 / Written by Dan Armano for Advanced Uninstaller PRO

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Last update on: 2016-08-27 11:13:43.353