84,488,480 programs installed

Should I remove PerfectDisk Professional?

What percent of users and experts removed it?
19% remove it81% keep it
Overall Sentiment
Very good
What do people think about it?
(click star to rate)
How common is it?
Global Rank #8,197
United States Rank #8,161
Reach 0.0491%
Lifespan of installation (until removal)
< 16.79 days
495.24 days >
Average installed length: 260.21 days


12.05.312 82.75%
12.05.311 6.71%
12.05.310 5.06%
12.05.309 5.17%
12.05.308 0.31%

PerfectDisk 12.5 Professional

What is PerfectDisk 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).

About  (from Raxco Software)

PerfectDisk 12.5 provides smarter optimization for all your drives, so you can work and play faster, while reducing the use of CPU and disk I/O resources to save on energy costs. PerfectDisk's new OptiWrite technology prevents most fragmentation on your drive before it occurs, which prevents your system from slowing do...  Read more


The most common release is 12.05.312, 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 primary executable is named PerfectDisk.exe. The setup package generally installs about 37 files and is usually about 33.21 MB (34,819,160 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\PerfectDisk\
Uninstaller: MsiExec.exe /I{FD310764-B3E5-430F-980E-D6C0016B2660}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 33.21 MB
Language: English (United States)

Program filesFiles installed by PerfectDisk 12.5 Professional

Program executable:PerfectDisk.exe
PerfectDisk 12.5
Signed by:Raxco Software
Path:C:\Program Files\Raxco\PerfectDisk\PerfectDisk.exe
PerfectDisk 12.5 for PerfectDisk is a defragmentation utility for Windows published by Raxco Software. PerfectDisk attempts to defragment drives in a single pass of a drive, as opposed to a common approach of running continuously and...
Additional files:
  • PDLangEN.dll - Raxco Software, Inc. PDLangEN (PerfectDisk English Language Library)
  • PDExchange.exe - PD ExchangeModule Module
  • PDExchangeps.dll - PerfectDisk for Exchange (ExchangeModule Proxy)
  • PDEngine.exe - PDEngine Module
  • PDSnapIn.dll - PDSnapIn Module
  • AutoUpd.exe - PerfectDisk 11 (Auto Update)
  • AutoUpdGui.exe - PerfectDisk 12 (Auto Update Gui)
  • AutoUpdPS.dll - AutoUpd Proxy
  • PDAgent.exe - PDAgent Module
  • PDAgentS1.exe - PDAgentS1 Module
  • PDCmd.exe - PDCmd
  • PDElevationWorker.exe - PDElevationWorker Module
  • PDEnginePS.dll - PDEngine Proxy
  • PDSched.exe - PDSched Module
  • PDUiOcx.dll - PDUiOcx Module
  • PDUtils.dll - PDUtils Module
  • PDVmGuest.dll - PerfectDisk Virtual library
  • PerfectDisk.exe
  • PDCommon.dll - PerfectDisk (PerfectDisk Common Library)
  • PDFsPerf.dll - PerfectDisk WriteRight Performance Counters DLL
  • PDSchedPS.dll - PDSched Proxy
  • PDVmGuestPS.dll - PDVMGuest proxy
  • 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.".

Program resource utilizationResource utilization averages

Memory:16.06 MB
21.09 MB average
Total CPU:0.0029653698%
0.031193% average
Kernel CPU:0.00229504%
0.016088% average
User CPU:0.00067033%
0.015104% average
CPU cycles/sec:209,679
8,062,084 average
I/O reads/min:1.11 KB
435.61 KB average
I/O writes/min:410 Bytes
105.02 KB average
Memory:10.77 MB
Total CPU:0.0001606582%
Kernel CPU:0.00006844%
User CPU:0.00009222%
CPU cycles/sec:1,220,147
I/O reads/min:38.9 KB
I/O writes/min:222 Bytes
Memory:1.28 MB
Total CPU:0.0000796818%
Kernel CPU:0.00005270%
User CPU:0.00002698%
CPU cycles/sec:2,908
I/O reads/min:516 Bytes
I/O writes/min:23 Bytes

How do I remove PerfectDisk Professional?

You can uninstall PerfectDisk 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 12.5 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 Professional.

Win 7 (SP1) 71%
Win XP 0%
Windows Service? Yes
(Installs a service)
Uninstall it 19%
Keep it 81%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 72.91%
Windows 10 16.96%
Windows XP 7.96%
Windows Vista 2.17%
Which OS releases does it run on?
Windows 7 Ultimate 32.67%
Windows 7 Home Premium 23.62%
Windows 7 Professional 14.36%
Microsoft Windows XP 7.80%
Windows 8 Pro 6.04%
Windows 8 Pro with Media ... 2.60%

Distribution by countryGeography

45.25% of installs come from the United States
Which countries install it?
  United States 45.25%
  United Kingdom 5.61%
  Canada 4.07%
  Italy 3.71%
  Germany 2.81%
  Australia 2.26%
  Russia 1.99%
  Brazil 1.72%
  Poland 1.72%
  Iran 1.63%
  India 1.45%
  France 1.36%
  Sweden 1.36%
  Romania 1.18%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 22.16%
Hewlett-Packard 19.27%
ASUS 15.80%
Acer 13.49%
Intel 4.24%
Toshiba 3.47%
Lenovo 2.31%
MSI 0.96%
Sahara 0.77%
Alienware 0.77%
Sony 0.58%
Common models
HP Pavilion dv7 Notebook ... 3.86%
HP Pavilion dv6 Notebook ... 3.86%
ASUS All Series 3.00%
HP Pavilion g6 Notebook P... 2.58%
Dell Dell DXP061 2.15%
Dell Inspiron N5110 2.15%

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


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