84,488,480 programs installed

Should I remove PerfectDisk Free Defrag?

What percent of users and experts removed it?
3% remove it97% keep it
Overall Sentiment
Very good
What do people think about it?
Be the first to rate (click star to rate)
How common is it?
Global Rank #23,434
United States Rank #20,738
Reach 0.0080%
Lifespan of installation (until removal)
< 19.93 days
587.92 days >
Average installed length: 308.91 days


1.0.0 100.00%

PerfectDisk Free Defrag

What is PerfectDisk Free Defrag?

PerfectDisk Free Defrag is a fully functional free defrag that optimizes desktops and laptops with Quick Defrag and defaults to the SMARTPlacement intelligent optimization strategy. Boot Time Defrag is available as is SSD Optimize.


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. The software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with. The setup package generally installs about 23 files and is usually about 40.57 MB (42,544,183 bytes). The program is built using the Nokia Qt cross-platforms native C++ framework.

Program detailsProgram details

URL: www.raxco.com
Help link: links.raxco.com/go.rax?id=PD12_5_Support
Installation folder: C:\Program Files\Raxco\PDFree\
Uninstaller: MsiExec.exe /I{56C0C063-2B3B-4B9B-8C1F-51C895EA1F0C}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 40.57 MB
Language: English (United States)

Program filesFiles installed by PerfectDisk Free Defrag

  • AutoUpdGui.exe - PerfectDisk Free Defrag (Auto Update Gui)
  • PDAgent.exe - PDAgent Module
  • PDAgentS1.exe - PDAgentS1 Module
  • PDElevationWorker.exe - PDElevationWorker Module
  • PDVmGuest.dll - PerfectDisk Virtual library
  • PDVmGuestPS.dll - PDVMGuest Proxy
  • PerfectDisk.exe
  • libeay32.dll (by The OpenSSL Project, http://www.openssl.org/) - The OpenSSL Toolkit (OpenSSL Shared Library)
  • ssleay32.dll (by The OpenSSL Project, http://www.openssl.org/)
  • chartdir50.dll (by Advanced Software Engineering Limited) - ChartDirector (ChartDirector DLL)
  • QtCore4.dll (by Nokia and/or its subsidiary(-ies)) - Qt4 (C++ application development framework.)
  • QtGui4.dll (by Nokia and/or its subsidiary(-ies))

Program behaviorsBehaviors exhibited

  • PDAgent.exe runs as a service named 'PDAgent' (PDAgent) "This service controls PerfectDisk's scheduling and remote communication.".
Windows Firewall Allowed Program
  • PDAgent.exe is added as a firewall exception for 'C:\Program Files\Raxco\PDFree\PDAgent.exe'.

How do I remove PerfectDisk Free Defrag?

You can uninstall PerfectDisk Free Defrag 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 PerfectDisk Free Defrag, 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 PerfectDisk Free Defrag.

Win 7 (SP1) 63%
Win Vista (SP1) 1%
Windows Service? Yes
(Installs a service)
Uninstall it 3%
Keep it 97%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 67.09%
Windows XP 15.82%
Windows 10 8.23%
Windows Vista 8.23%
Windows Server 2003 0.63%
Which OS releases does it run on?
Windows 7 Home Premium 33.97%
Windows 7 Professional 17.31%
Microsoft Windows XP 16.67%
Windows 7 Ultimate 11.54%
Windows Vista Home Premiu... 6.41%
Windows 10 Pro 3.21%

Distribution by countryGeography

50.26% of installs come from the United States
Which countries install it?
  United States 50.26%
  Italy 12.95%
  United Kingdom 5.18%
  Canada 4.66%
  Brazil 4.15%
  BA 2.07%
  Belgium 1.55%
  Germany 1.55%
  France 1.55%
  Mexico 1.55%
  Netherlands 1.55%
  Argentina 1.04%
  Czech Republic 1.04%
  India 1.04%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 24.44%
Dell 23.33%
Acer 21.11%
American Megatrends 6.67%
Toshiba 5.56%
ASUS 4.44%
Intel 3.33%
Lenovo 2.22%
Compaq 1.11%
Common models
Dell Inspiron 530 2.94%
HP Pavilion g7 Notebook P... 2.94%
HP Pavilion dv7 Notebook ... 1.96%
Dell Inspiron 1545 1.96%
LENOVO Lenovo H430 1.96%
Dell Studio 1558 1.96%

About (from Raxco Software Inc.)

For over 30 years Raxco Software has developed award-winning defragmentation solutions and performance utilities that improve hard drive and server performance, simplify system administration and help our customers work more efficiently –at home and at the office.
Publisher URL: www.raxco.com


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