84,488,480 programs installed

Should I remove O&O Defrag Server?

What percent of users and experts removed it?
10% remove it90% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #36,493
United States Rank #45,069
Reach 0.0031%


20.5.603 1.64%
18.0.39 6.56%
17.5.557 8.20%
17.0.504 11.48%
17.0.468 1.64%
16.0.345 1.64%
16.0.318 4.92%
16.0.183 19.67%
15.8.801 14.75%
15.0.107 3.28%
14.1.305 13.11%
14.0.205 1.64%
14.0.177 1.64%
12.0.197 9.84%

O&O Defrag Server

What is O&O Defrag Server?  (from O&O Software GmbH)

The program empowers system administrators with the ability to configure defragmentation jobs for any network storage vol-ume through the O&O Enterprise Management Console, or any other standard management console – all from the comfort of their own desk. O&O recommends the SPACE or the COMPLETE/MODIFIED methods while ...  Read more


O&O Defrag Server is a software program developed by O&O Software GmbH. The most common release is 16.0.183, with over 98% of all installations currently using this version. During setup, the program creates a startup registration point in Windows in order to automatically start when any user boots the PC. Upon being installed, the software adds a Windows Service which is designed to run continuously in the background. Manually stopping the service has been seen to cause the program to stop functing properly. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with. When installed, it will add a context menu handler to the Windows shell in order to provide quick access to the program. The setup package generally installs about 39 files and is usually about 76.46 MB (80,179,138 bytes). The installed file ooliveupdate.exe is the auto-update component of the program which is designed to check for software updates and notify and apply them when new versions are discovered. Relative to the overall usage of users who have this installed on their PCs, most are running Windows 7 (SP1) and Windows 10. While about 27% of users of O&O Defrag Server come from the United States, it is also popular in France and Germany.

Program detailsProgram details

URL: www.oo-software.com/en/products/oodefrag/smi-oo-defrag-server-edition-optimiert-backup-performance
Help link: www.oo-software.com
Installation folder: C:\Program Files\OO Software\Defrag\
Uninstaller: MsiExec.exe /I{DD2975B0-3370-4206-8099-9B0D298EC68F}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 76.46 MB
Language: English (United States)

Program filesFiles installed by O&O Defrag Server

  • oodfree.ocx - O&O Defrag Free Edition (O&O Defrag Free Edition OCX (x64))
  • oodfreemmc.dll - O&O Defrag Free Edition MMC plug-in (x64)
  • ooliveupdate.exe - O&O LiveUpdate
  • oodag.exe - O&O Defrag (O&O Defrag Agent (x64))
  • oodagmg.dll - O&O Defrag Agent Message DLL (ENU) (x64)
  • oodagrs.dll - O&O Defrag Agent Resource DLL (ENU) (x64)
  • oodcmd.exe - O&O Defrag CommandLine Utility (x64)
  • oodcmdrs.dll - O&O Defrag Commandline Resources (FRA) (x64)
  • oodcnt.exe - O&O Defrag Container (x64)
  • oodcoco.ocx - O&O Defrag OCX (x64)
  • oodfreesur.dll - O&O Defrag SplashUp Resources (ENU) (x64)
  • oodguirs.dll - O&O Defrag Resources (FRA) (x64)
  • oodjobd.dll - O&O Defrag Job Dialog (x64)
  • oodjobdr.dll - O&O Defrag Job Dialog Resource DLL (ENU) (x64)
  • oodpeo.ocx
  • oodpep.dll
  • oodpesur.dll
  • oodsesur.dll - O&O Defrag SplashUp Resources (FRA) (x64)
  • oodsetpr.dll - O&O Defrag Tip Resources (ENU) (x64)
  • oodsh.dll - O&O Defrag Shell Extension (x64)
  • oodshrs.dll - O&O Defrag Shell Extension Resource DLL (FRA) (x64)
  • oodsvct.exe - O&O Defrag Service Control (x64)
  • oodtray.exe - O&O Defrag TrayIcon (x64)
  • oodtrrs.dll - O&O Defrag TrayIcon Resource DLL (FRA) (x64)
  • oodwiz.dll - O&O Defrag Wizard (x64)
  • oodwizrs.dll - O&O Defrag Wizard Resource DLL (ENU) (x64)
  • oodwrtlic.exe - O&O Defrag License Writer (x64)
  • oodfreerwr.dll - O&O SDK (O&O Registration Wizard Resources (ENU) (x64))
  • oodperwr.dll
  • oodserwr.dll - O&O Registration Wizard Resources (FRA) (x64)
  • oorwiz2.dll - O&O Registration Wizard (x64)
  • oorwiz3.dll
  • oorwiz4.dll
  • oosu.dll - O&O SplashUp (x64)
  • ootip.dll - O&O Tip Dialog (x64)
  • ootmapi.dll - O&O TextMode Driver API (x64)

Program behaviorsBehaviors exhibited

Context Menu Handler
  • oodsh.dll added to Windows Explorer under the name 'OODefrag' with a class of {48EAD1E1-ECF2-4a85-AA09-1C44FBEED451}.
Scheduled Task
  • oodcnt.exe is scheduled as a task with the class '{B1F6E240-B438-4AE5-BB0D-76F38BCA9216}' (runs on registration).
Scheduled Task (Boot/Login)
  • oodtray.exe is automatically launched at startup through a scheduled task named OODefragTray.
  • oodag.exe runs as a service named 'O&O Defrag' (OODefragAgent).
Startup File (All Users Run)
  • oodtray.exe is loaded in the all users (HKLM) registry as a startup file name 'OODefragTray' which loads as C:\Program Files\OO Software\Defrag\oodtray.exe.
Windows Firewall Allowed Program
  • oodag.exe is added as a firewall exception for 'C:\Program Files\OO Software\Defrag\oodag.exe'.

Program resource utilizationResource utilization averages

Memory:14.25 MB
21.09 MB average
Total CPU:0.0078585595%
0.031193% average
Kernel CPU:0.00392928%
0.016088% average
User CPU:0.00392928%
0.015104% average
Memory:6.15 MB
Total CPU:0.0010607102%
Kernel CPU:0.00027813%
User CPU:0.00078258%

How do I remove O&O Defrag Server?

You can uninstall O&O Defrag Server from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program O&O Defrag Server, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove O&O Defrag Server.

Win 7 (SP1) 69%
Win XP 2%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 10%
Keep it 90%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 72.13%
Windows 10 24.59%
Windows Server 2003 1.64%
Windows XP 1.64%
Which OS releases does it run on?
Windows 7 Ultimate 37.70%
Windows 7 Professional 14.75%
Windows 7 Home Premium 13.11%
Windows 8.1 Pro 8.20%
Windows 8.1 Pro with Medi... 3.28%
Windows 7 Enterprise 3.28%

Distribution by countryGeography

27.27% of installs come from the United States
Which countries install it?
  United States 27.27%
  France 15.15%
  Germany 13.64%
  Russia 4.55%
  United Kingdom 4.55%
  Greece 4.55%
  Switzerland 3.03%
  Belgium 3.03%
  BY 1.52%
  Lithuania 1.52%
  Mexico 1.52%
  Portugal 1.52%
  Taiwan 1.52%
  Argentina 1.52%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Acer 20.00%
ASUS 20.00%
Hewlett-Packard 15.00%
Dell 10.00%
Lenovo 10.00%
Intel 5.00%
Alienware 2.50%
Samsung 2.50%
Medion 2.50%
Apple 2.50%
Common models
Positivo BGH Positivo... 2.17%
Micro-Star MEGA BOOK PX20... 2.17%
HP-Pavilion VC903AA-ABF p... 2.17%
HP ProLiant ML370 G5 2.17%
Hewlett-Packard p6-2121ef 2.17%

About O&O Software GmbH

The company develops and sells software products for data management and security, the first product beingO&O Defrag.
Publisher URL: www.oo-software.com


user comment
No one has commented yet. Help others learn more about this software, share your comments.