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Should I remove Defragger Disk Optimizer?

What percent of users and experts removed it?
6% remove it94% keep it
Overall Sentiment
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How common is it?
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Defragger Disk Optimizer


Defragger Disk Optimizer is a program developed by PC HelpSoft. It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. The main program executable is ddo.exe. The software installer includes 27 files and is usually about 17.83 MB (18,701,332 bytes). In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows 10. While about 59% of users of Defragger Disk Optimizer come from the United States, it is also popular in Canada and United Kingdom.

Program detailsProgram details

URL: www.pchelpsoft.com
Installation folder: C:\Program Files\Defragger Disk Optimizer\
Uninstaller: "C:\Program Files\Defragger Disk Optimizer\unins000.exe"
Estimated size: 17.83 MB

Program filesFiles installed by Defragger Disk Optimizer

Program executable:ddo.exe
Name:PC HelpSoft Defragger Disk Optimizer
PC HelpSoft - Defragger Disk Optimizer
Path:C:\Program Files\defragger disk optimizer\ddo.exe
Additional files:
  • AsInvoker.exe - PC HelpSoft Defragger Disk Optimizer (PC HelpSoft - UAC Launcher)
  • asores.dll
  • DDODefragServiceManager.exe - PC HelpSoft - Install Helper
  • DDODefragSrv.exe - PC HelpSoft - Defrag Service
  • DDODefragSrv64.exe
  • ddohelper.dll
  • ddosys.dll
  • HighestAvailable.exe
  • KillDDOProcesses.exe
  • RequireAdministrator.exe
  • asohtm.dll
  • unins000.exe - Setup/Uninstall
  • atl90.dll (by Microsoft) - Microsoft® Visual Studio® 2008 (ATL Module for Windows (Unicode))
  • MFC90CHS.dll (by Microsoft) - MFC Language Specific Resources
  • MFC90CHT.dll
  • MFC90DEU.dll
  • MFC90ENU.dll
  • MFC90ESN.dll
  • MFC90ESP.dll
  • MFC90FRA.dll
  • MFC90ITA.dll
  • MFC90JPN.dll
  • MFC90KOR.dll
  • mfc90u.dll - MFCDLL Shared Library - Retail Version
  • msvcp90.dll - Microsoft® C++ Runtime Library
  • msvcr90.dll - Microsoft® C Runtime Library

Program behaviorsBehaviors exhibited

2 Services
  • DDODefragSrv64.exe runs as a service named 'DDODiskOptimizer' (DDODiskOptimizer).
  • DDODefragSrv.exe runs as a service named 'DDODiskOptimizer' (DDODiskOptimizer).

How do I remove Defragger Disk Optimizer?

You can uninstall Defragger Disk Optimizer 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 Defragger Disk Optimizer, 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 Defragger Disk Optimizer.

Win 7 (SP1) 62%
Win Vista (SP2) 8%
Windows Service? Yes
(Installs a service)
Uninstall it 6%
Keep it 94%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 61.54%
Windows 10 23.08%
Windows XP 7.69%
Windows Vista 7.69%
Which OS releases does it run on?
Windows 7 Home Premium 30.77%
Windows 7 Professional 30.77%
Microsoft Windows XP 7.69%
Windows 10 Home 7.69%
Windows 8 7.69%
Windows 8.1 7.69%

Distribution by countryGeography

59.09% of installs come from the United States
Which countries install it?
  United States 59.09%
  Canada 13.64%
  United Kingdom 13.64%
  Australia 4.55%
  Switzerland 4.55%
  South Africa 4.55%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 33.33%
Hewlett-Packard 33.33%
ASUS 8.33%
Toshiba 8.33%
Sony 8.33%
Lenovo 8.33%
Common models
TOSHIBA Satellite L75D-A 7.69%
Sony VPCL224FD 7.69%
LENOVO 10064 7.69%
Hewlett-Packard p6-2175ea 7.69%
HP Pavilion g7 Notebook P... 7.69%
HP ENVY m6 Notebook PC 7.69%


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