O&O Defrag Professional O&O Defrag Professional

A way to uninstall O&O Defrag Professional from your PC

This page is about O&O Defrag Professional for Windows. Here you can find details on how to remove it from your PC. It is made by O&O Software GmbH. More information on O&O Software GmbH can be found here. More info about the software O&O Defrag Professional can be seen at . O&O Defrag Professional is typically installed in the C:\Program Files\OO Software\Defrag Professional folder, however this location can differ a lot depending on the user's decision when installing the application. You can remove O&O Defrag Professional by clicking on the Start menu of Windows and pasting the command line MsiExec.exe /I{1D952425-335E-4586-AAEC-56DA0CDB01D9}. Note that you might be prompted for administrator rights. O&O Defrag Professional's primary file takes about 5.11 MB (5363264 bytes) and its name is oodcnt.exe.

O&O Defrag Professional installs the following the executables on your PC, taking about 15.49 MB (16245184 bytes) on disk.

  • oodag.exe (1.66 MB)
  • oodcmd.exe (2.59 MB)
  • oodcnt.exe (5.11 MB)
  • oodsvct.exe (107.06 KB)
  • oodtray.exe (4.90 MB)
  • oodwrtlic.exe (134.56 KB)
  • ooliveupdate.exe (1,015.06 KB)
...click to view all...

The current page applies to O&O Defrag Professional version 20.0.465 only. You can find here a few links to other O&O Defrag Professional versions:

...click to view all...
Several files, folders and registry entries can not be deleted when you are trying to remove O&O Defrag Professional from your PC.

Directories left on disk:
  • C:\Program Files\OO Software\Defrag
  • C:\Users\UserName\AppData\Local\O&O\O&O Defrag

Generally, the following files remain on disk:
  • C:\Program Files\OO Software\Defrag\oodag.exe
  • C:\Program Files\OO Software\Defrag\oodagmg.dll
  • C:\Program Files\OO Software\Defrag\oodagrs.dll
  • C:\Program Files\OO Software\Defrag\oodagt.adm
  • C:\Program Files\OO Software\Defrag\oodcmd.exe
  • C:\Program Files\OO Software\Defrag\oodcmdrs.dll
  • C:\Program Files\OO Software\Defrag\oodcnt.exe
  • C:\Program Files\OO Software\Defrag\oodgui.adm
  • C:\Program Files\OO Software\Defrag\oodguirs.dll
  • C:\Program Files\OO Software\Defrag\oodjobd.dll
  • C:\Program Files\OO Software\Defrag\oodjobdr.dll
  • C:\Program Files\OO Software\Defrag\oodpeo.ocx
  • C:\Program Files\OO Software\Defrag\oodpep.dll
  • C:\Program Files\OO Software\Defrag\oodperwr.dll
  • C:\Program Files\OO Software\Defrag\oodpesur.dll
  • C:\Program Files\OO Software\Defrag\oodsh.dll
  • C:\Program Files\OO Software\Defrag\oodshrs.dll
  • C:\Program Files\OO Software\Defrag\oodsvct.exe
  • C:\Program Files\OO Software\Defrag\oodtray.exe
  • C:\Program Files\OO Software\Defrag\oodtrrs.dll
  • C:\Program Files\OO Software\Defrag\oodwrtlic.exe
  • C:\Program Files\OO Software\Defrag\ooliveupdate.exe
  • C:\Program Files\OO Software\Defrag\oorwiz4.dll
  • C:\Program Files\OO Software\Defrag\oosu.dll
  • C:\Program Files\OO Software\Defrag\readme.txt
  • C:\Program Files\OO Software\Defrag\rpcanalysis.htm
  • C:\Program Files\OO Software\Defrag\rpcchkdsk.htm
  • C:\Program Files\OO Software\Defrag\rpcdat01.htm
  • C:\Program Files\OO Software\Defrag\rpcdefrag.htm
  • C:\Program Files\OO Software\Defrag\rpcdiskcleaneropt.htm
  • C:\Program Files\OO Software\Defrag\rpcdiskcleanerscan.htm
  • C:\Program Files\OO Software\Defrag\rpcdiskstatscan.htm
  • C:\Program Files\OO Software\Defrag\rpcmn01.htm
  • C:\Program Files\OO Software\Defrag\rpcspaceopt.htm
  • C:\Users\UserName\AppData\Local\O&O\O&O Defrag\ocx\ocxdata.oodguisettings
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170316115448_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170316181840_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170317181840_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170318181832_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170319181832_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170320181832_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170321181833_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170322102528_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170322112423_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170322112433_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170322112509_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170322112625_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Local\Temp\OO Software\OO LiveUpdate\20170322112630_O&O Defrag Professional.log
  • C:\Users\UserName\AppData\Roaming\Adobe\Bridge CC 2017\Cache\1024\DownloadFCBC158D\O&O Defrag 20 Pro.pdf.jpg
  • C:\Users\UserName\AppData\Roaming\Adobe\Bridge CC 2017\Cache\256\DownloadFCBC158D\O&O Defrag 20 Pro.pdf.jpg
  • C:\Users\UserName\AppData\Roaming\Adobe\Bridge CC 2017\Cache\full\DownloadFCBC158D\O&O Defrag 20 Pro.pdf.jpg
  • C:\WINDOWS\Installer\{B30EBF12-4268-45F5-8948-99C983025151}\app_icon.ico

You will find in the Windows Registry that the following keys will not be uninstalled; remove them one by one using regedit.exe:
  • 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\Classes\Installer\Products\524259D1E5336854AACE65ADC0BD109D
  • HKEY_LOCAL_MACHINE\Software\O&O\O&O Defrag
  • HKEY_LOCAL_MACHINE\Software\O&O\O&O LiveUpdate\O&O Defrag Professional
  • HKEY_LOCAL_MACHINE\Software\Policies\O&O\O&O Defrag

Open regedit.exe to remove the values below from the Windows Registry:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\524259D1E5336854AACE65ADC0BD109D\ProductName
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders\C:\Program Files\OO Software\Defrag\
  • HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\OODefragAgent\ImagePath

A way to erase O&O Defrag Professional from your PC with Advanced Uninstaller PRO

O&O Defrag Professional is an application by the software company O&O Software GmbH. Frequently, computer users try to erase this program. This is troublesome because uninstalling this manually takes some knowledge regarding Windows internal functioning. The best EASY way 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, install it. This is a good step because Advanced Uninstaller PRO is a very potent uninstaller and all around utility to optimize your system.


2. Start Advanced Uninstaller PRO. It's recommended to take your time to get familiar with the program's design and wealth of functions available. Advanced Uninstaller PRO is a very useful system utility.

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

4. Click on the Uninstall Programs feature
Go to Uninstall Programs

5. A list of the programs existing on the PC will be made available to you

6. Navigate the list of programs 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 very quickly. Notice that when you select O&O Defrag Professional in the list , some information regarding the program is shown to you:

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

  • The software company is: http://www.oo-software.com
  • The uninstall string is: MsiExec.exe /I{1D952425-335E-4586-AAEC-56DA0CDB01D9}
7. Press the Uninstall button. A window asking you to confirm will come up. Confirm the removal by pressing the Uninstall button. 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 ask you to run an additional cleanup. Click Next to start the cleanup. All the items that belong O&O Defrag Professional which have been left behind will be found and you will be asked if you want to delete them. By removing O&O Defrag Professional with Advanced Uninstaller PRO, you can be sure that no Windows registry entries, files or folders are left behind on your PC.

Your Windows PC will remain clean, speedy and able to run without errors or problems.



This page is not a recommendation 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 application for your computer. This text only contains detailed instructions on how to uninstall O&O Defrag Professional supposing you want to. Here you can find registry and disk entries that Advanced Uninstaller PRO discovered and classified as "leftovers" on other users' computers.

2017-03-01 / Written by Daniel Statescu for Advanced Uninstaller PRO

follow @DanielStatescu
Last update on: 2017-03-01 20:00:35.120