84,488,480 programs installed

Should I remove PerfectDisk 11 Professional?

What percent of users and experts removed it?
25% remove it75% keep it
Overall Sentiment
Very good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #11,288
United States Rank #12,534
Reach 0.0299%
Lifespan of installation (until removal)
< 127.25 days
858.77 days >
Average installed length: 451.22 days


11.00.185 50.34%
11.00.184 25.08%
11.00.183 1.36%
11.00.182 4.07%
11.00.180 0.17%
11.00.179 0.34%
11.00.178 5.25%
11.00.175 0.51%
11.00.174 4.58%
11.00.172 0.85%
11.00.170 3.90%
11.00.165 3.56%

PerfectDisk 11 Professional

What is PerfectDisk 11 Professional?

PerfectDisk is a defragmentation utility for Windows that can optimize disk drives with an optimization strategy called SMARTPlacement as well as prevents fragmentation with OptiWrite (detects when Windows is going to fragment files and intelligently redirects I/O to stop the fragmentation).


The most common release is 11.00.185, with over 98% of all installations currently using this version. 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 primary executable is named PerfectDisk.exe. The setup package generally installs about 17 files and is usually about 2.15 MB (2,253,824 bytes). The program is built using the Nokia Qt cross-platforms native C++ framework.

Program detailsProgram details

URL: www.perfectdisk.com
Help link: www.perfectdisk.com/support
Installation folder: C:\Program Files\Raxco\PerfectDisk\
Uninstaller: MsiExec.exe /I{B7607FC8-72AD-486D-B6B7-A402D5876309}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 2.15 MB
Language: English (United States)

Program filesFiles installed by PerfectDisk 11 Professional

Program executable:PerfectDisk.exe
Name:PerfectDisk 11
Path:C:\Program Files\Raxco\PerfectDisk\PerfectDisk.exe
Additional files:
  • AutoUpd.exe - PerfectDisk 11 (Auto Update)
  • AutoUpdGui.exe - Auto Update Gui
  • AutoUpdPS.dll - AutoUpd Proxy
  • PDAgent.exe - PDAgent Module
  • PDAgentS1.exe - PDAgentS1 Module
  • PDCmd.exe - PDCmd
  • PDElevationWorker.exe - PDElevationWorker Module
  • PDEngine.exe - PDEngine Module
  • PDEnginePS.dll - PDEngine Proxy
  • PDState.dll - Space Management Module
  • PDUtils.dll - PDUtils Module
  • PerfectDisk.exe
  • 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

2 Services
  • PDEngine.exe runs as a service named 'PDEngine' (PDEngine) "PerfectDisk-Defragmentierungsmaschine".
  • PDAgent.exe runs as a service named 'PDAgent' (PDAgent) "Dieser Service steuert die Planung von und Remote-Kommunikation mit PerfectDisk.".
3 Windows Firewall Allowed Programs
  • PDEnginePS.dll is added as a firewall exception for 'C:\Program Files\Raxco\PerfectDisk\PDEnginePS.dll'.
  • PDEngine.exe is added as a firewall exception for 'C:\Program Files\Raxco\PerfectDisk\PDEngine.exe'.
  • PDAgent.exe is added as a firewall exception for 'C:\Program Files\Raxco\PerfectDisk\PDAgent.exe'.

Program resource utilizationResource utilization averages

Memory:4.62 MB
21.09 MB average
Total CPU:0.0001964242%
0.031193% average
Kernel CPU:0.00012873%
0.016088% average
User CPU:0.00006769%
0.015104% average
CPU cycles/sec:12,653,987
8,062,084 average
I/O reads/min:32 Bytes
435.61 KB average
I/O writes/min:9 Bytes
105.02 KB average
Memory:928 KB
Total CPU:0.0013374797%
Kernel CPU:0.00081258%
User CPU:0.00052490%
Memory:2.35 MB
Total CPU:0.0015024024%
Kernel CPU:0.00107180%
User CPU:0.00043060%

How do I remove PerfectDisk 11 Professional?

You can uninstall PerfectDisk 11 Professional 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 11 Professional, 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 11 Professional.

Win 7 (SP1) 63%
Win Server 2003 0%
Windows Service? Yes
(Installs a service)
Uninstall it 25%
Keep it 75%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 68.81%
Windows XP 19.83%
Windows Vista 8.64%
Windows 10 2.54%
Windows Server 2003 0.17%
Which OS releases does it run on?
Windows 7 Ultimate 29.64%
Windows 7 Home Premium 23.85%
Microsoft Windows XP 20.10%
Windows 7 Professional 11.75%
Windows Vista Home Premiu... 6.47%
Windows 10 Home 1.70%

Distribution by countryGeography

35.12% of installs come from the United States
Which countries install it?
  United States 35.12%
  Germany 20.81%
  France 4.19%
  Italy 3.61%
  United Kingdom 3.61%
  Canada 3.18%
  Australia 2.02%
  Russia 1.59%
  Netherlands 1.59%
  Brazil 1.45%
  Spain 1.45%
  Poland 1.30%
  Israel 1.16%
  Iran 1.16%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 19.28%
Hewlett-Packard 17.65%
Acer 15.69%
ASUS 9.80%
Intel 4.25%
Medion 3.92%
Toshiba 3.59%
Sahara 3.27%
American Megatrends 2.29%
Lenovo 1.63%
Samsung 1.31%
Common models
HP Pavilion dv6 Notebook ... 6.41%
HP Pavilion dv7 Notebook ... 2.56%
HP G60 Notebook PC 2.56%
Unknow Unknow 2.56%
Gigabyte P35C-DS3R 1.92%

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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