O&O Defrag Professional

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

You can find on this page details on how to remove O&O Defrag Professional for Windows. The Windows version was developed by O&O Software GmbH. Open here for more information on O&O Software GmbH. You can see more info on O&O Defrag Professional at http://www.oo-software.com. The program is usually placed in the C:\Program Files\OO Software\Defrag directory. Keep in mind that this location can differ depending on the user's preference. You can uninstall O&O Defrag Professional by clicking on the Start menu of Windows and pasting the command line MsiExec.exe /I{21E45262-4725-4FC9-9DE5-01B26EC81EC9}. Note that you might be prompted for administrator rights. The application's main executable file occupies 2.39 MB (2501320 bytes) on disk and is called OODefragLauncher.exe.

O&O Defrag Professional is composed of the following executables which occupy 39.61 MB (41536344 bytes) on disk:

• Keygen.exe (303.00 KB)
• OOAPB.EXE (2.23 MB)
• oodag.exe (3.71 MB)
• oodcmd.exe (2.59 MB)
• oodcnt.exe (5.03 MB)
• OODefragMUI.exe (4.06 MB)
• OODefragTray.exe (455.88 KB)
• oodtrwnd.exe (2.17 MB)
• ooliveupdate.exe (3.40 MB)
• OOStartupManager.exe (5.65 MB)
• OOVisualDisk.exe (7.64 MB)
• OODefragLauncher.exe (2.39 MB)

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The information on this page is only about version 29.1.11203 of O&O Defrag Professional. You can find below info on other versions of O&O Defrag Professional:

• 27.0.8039
• 17.0.420
• 15.5.323
• 20.0.449
• 28.0.10005
• 14.0.167
• 19.0.99
• 18.10.101
• 20.0.419
• 16.0.139
• 28.1.10015
• 28.0.10014
• 18.10.103
• 23.0.3579
• 14.0.173
• 15.8.813
• 14.0.177
• 14.1.305
• 29.1.11206
• 22.0.2284
• 15.8.801
• 27.0.8040
• 16.0.318
• 18.0.39
• 26.0.7639
• 11.1.3362
• 19.0.69
• 20.0.427
• 27.0.8038
• 11.5.4101
• 17.0.504
• 25.1.7305
• 21.1.1211
• 16.0.183
• 23.0.3080
• 15.0.73
• 15.8.823
• 14.1.425
• 21.0.1107
• 17.5.557
• 29.1.11201
• 23.5.5015
• 26.1.7709
• 24.1.6505
• 11.6.4199
• 16.0.367
• 23.0.3577
• 20.0.465
• 17.0.490
• 14.0.145
• 25.0.7210
• 26.1.7701
• 28.2.10017
• 29.0.11123
• 14.5.543
• 20.5.603
• 26.1.7702
• 28.2.10016
• 14.5.539
• 24.5.6601
• 15.0.83
• 28.0.10008
• 29.0.11118
• 17.5.559
• 23.5.5016
• 27.0.8041
• 27.0.8047
• 29.0.11110
• 12.5.339
• 16.0.141
• 23.0.3094
• 23.5.5022
• 23.0.3557
• 22.1.2521
• 16.0.151
• 28.0.10012
• 20.0.461
• 15.0.107
• 16.0.345
• 23.0.3562
• 28.0.10006
• 12.5.351
• 15.8.809
• 28.2.10018
• 29.1.11205
• 23.0.3576
• 28.0.10011
• 19.5.222
• 26.0.7641
• 27.0.8042
• 17.0.468
• 14.1.431
• 18.9.60
• 21.0.1115
• 12.0.197
• 20.0.457
• 24.0.6023
• 17.0.422
• 16.0.306
• 26.1.7708

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Some files and registry entries are frequently left behind when you remove O&O Defrag Professional.

Folders remaining:

• C:\Program Files\OO Software\Defrag
• C:\Users\%user%\AppData\Local\O&O\O&O Defrag

Check for and remove the following files from your disk when you uninstall O&O Defrag Professional:

• C:\Program Files\OO Software\Defrag\amd64\KernelTraceControl.dll
• C:\Program Files\OO Software\Defrag\amd64\msdia140.dll
• C:\Program Files\OO Software\Defrag\Launcher\OODefragLauncher.exe
• C:\Program Files\OO Software\Defrag\OOAPB.EXE
• 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\OODefragMUI.exe
• C:\Program Files\OO Software\Defrag\OODefragTray.exe
• C:\Program Files\OO Software\Defrag\oodexttl.dll
• 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\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\oodtrwnd.exe
• C:\Program Files\OO Software\Defrag\ooliveupdate.exe
• C:\Program Files\OO Software\Defrag\oorwiz4.dll
• C:\Program Files\OO Software\Defrag\OOStartupManager.exe
• C:\Program Files\OO Software\Defrag\oosu.dll
• C:\Program Files\OO Software\Defrag\OOVisualDisk.exe
• 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\rpcmn01.htm
• C:\Program Files\OO Software\Defrag\rpcspaceopt.htm
• C:\Program Files\OO Software\Defrag\rpcstealth.htm
• C:\Users\%user%\AppData\Local\O&O\O&O Defrag\ocx\ocxdata.oodguisettings
• C:\Users\%user%\AppData\Local\Temp\OO Software\OO LiveUpdate\20250311134828_O&O Defrag Professional.log
• C:\Users\%user%\AppData\Local\Temp\OO Software\OO LiveUpdate\20250311134832_O&O Defrag Professional.log
• C:\Users\%user%\AppData\Local\Temp\OO Software\OO LiveUpdate\20250311134859_O&O Defrag Professional.log
• C:\Users\%user%\AppData\Local\Temp\OO Software\OO LiveUpdate\20250311135023_O&O Defrag Professional.log
• C:\Users\%user%\AppData\Local\Temp\OO Software\OO LiveUpdate\20250311135025_O&O Defrag Professional.log
• C:\WINDOWS\Installer\{F1751F3A-6EA9-4486-B804-8ACE621B7554}\app_icon.exe

Registry that is not 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\Classes\Installer\Products\26254E1252749CF4D95E102BE68CE19C
• 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

Additional values that you should remove:

• HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\MuiCache\C:\Program Files\OO Software\Defrag\oodcnt.exe.ApplicationCompany
• HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\MuiCache\C:\Program Files\OO Software\Defrag\oodcnt.exe.FriendlyAppName
• HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\26254E1252749CF4D95E102BE68CE19C\ProductName
• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Folders\C:\Program Files\OO Software\Defrag\
• HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\OODefragAgent\ImagePath

How to erase O&O Defrag Professional from your computer using Advanced Uninstaller PRO

O&O Defrag Professional is an application marketed by the software company O&O Software GmbH. Sometimes, users want to uninstall this program. Sometimes this is efortful because uninstalling this manually requires some advanced knowledge regarding PCs. One of the best SIMPLE practice to uninstall O&O Defrag Professional is to use Advanced Uninstaller PRO. Take the following steps on how to do this:





1. If you don't have Advanced Uninstaller PRO on your Windows PC, add it. This is a good step because Advanced Uninstaller PRO is a very useful uninstaller and general tool to optimize your Windows system.

DOWNLOAD NOW

• navigate to Download Link
• download the setup by pressing the green DOWNLOAD NOW button
• set up Advanced Uninstaller PRO

2. Start Advanced Uninstaller PRO. Take some time to admire Advanced Uninstaller PRO's design and wealth of tools available. Advanced Uninstaller PRO is a powerful package of tools.

3. Click on the General Tools category


4. Press the Uninstall Programs feature


5. A list of the applications existing on your computer will be made available to you

6. Scroll the list of applications until you locate O&O Defrag Professional or simply activate the Search feature and type in "O&O Defrag Professional". If it is installed on your PC the O&O Defrag Professional application will be found automatically. Notice that when you click O&O Defrag Professional in the list of applications, some information about the program is available to you:

• Safety rating (in the left lower corner). The star rating tells you the opinion other people have about O&O Defrag Professional, ranging from "Highly recommended" to "Very dangerous".
• Opinions by other people - Click on the Read reviews button.
• Details about the program you wish to remove, by pressing the Properties button.

For instance you can see that for O&O Defrag Professional:

• The web site of the application is: http://www.oo-software.com
• The uninstall string is: MsiExec.exe /I{21E45262-4725-4FC9-9DE5-01B26EC81EC9}

7. Click the Uninstall button. A confirmation window will come up. accept the removal by clicking Uninstall. Advanced Uninstaller PRO will then uninstall O&O Defrag Professional.


8. After uninstalling O&O Defrag Professional, Advanced Uninstaller PRO will offer to run a cleanup. Press 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 able to delete them. By uninstalling O&O Defrag Professional using Advanced Uninstaller PRO, you can be sure that no Windows registry entries, files or directories are left behind on your system.

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

Disclaimer

The text above is not a piece of advice to uninstall O&O Defrag Professional by O&O Software GmbH from your computer, nor are we saying that O&O Defrag Professional by O&O Software GmbH is not a good application for your PC. This page only contains detailed info on how to uninstall O&O Defrag Professional supposing you want to. The information above contains registry and disk entries that our application Advanced Uninstaller PRO stumbled upon and classified as "leftovers" on other users' PCs.