84,488,480 programs installed

Should I remove PerfectDisk Home Premium?

What percent of users and experts removed it?
3% remove it97% keep it
Overall Sentiment
What do people think about it?
Be the first to rate (click star to rate)
How common is it?
Global Rank #42,243
United States Rank #31,316
Reach 0.0022%


12.05.312 86.05%
12.05.311 4.65%
12.05.310 6.98%
12.05.309 2.33%

PerfectDisk 12.5 Home Premium

What is PerfectDisk Home Premium?

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 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 setup package generally installs about 22 files and is usually about 22.55 MB (23,648,256 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\defragfs
Uninstaller: MsiExec.exe /I{FD310764-B3E5-430F-980E-D6C0016B2660}
(The Windows Installer is used for the installation, maintenance, and removal.)
Estimated size: 22.55 MB
Language: English (United States)

Program filesFiles installed by PerfectDisk 12.5 Home Premium

  • AutoUpdGui.exe - PerfectDisk (Auto Update Gui)
  • chartdir50.dll (by Advanced Software Engineering Limited) - ChartDirector (ChartDirector DLL)
  • libeay32.dll (by The OpenSSL Project, http://www.openssl.org/) - The OpenSSL Toolkit (OpenSSL Shared Library)
  • PDAgent.exe - PDAgent Module
  • PDAgentS1.exe - PDAgentS1 Module
  • PDCmd.exe - PDCmd
  • PDElevationWorker.exe - PDElevationWorker Module
  • PDFsPerf.dll - PerfectDisk WriteRight Performance Counters DLL
  • PDVmGuest.dll - PerfectDisk Virtual library
  • PDVmGuestPS.dll - PDVMGuest proxy
  • PerfectDisk.exe - PerfectDisk 12.5
  • QtCore4.dll (by Nokia and/or its subsidiary(-ies)) - Qt4 (C++ application development framework.)
  • QtGui4.dll (by Nokia and/or its subsidiary(-ies))
  • ssleay32.dll (by The OpenSSL Project, http://www.openssl.org/)
  • sqlceoledb35.dll (by Microsoft) - Microsoft SQL Server Compact (OLEDB Provider (64-bit))
  • sqlceqp35.dll (by Microsoft) - Query Processor (64-bit)
  • sqlcese35.dll - Storage Engine (64-bit)

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:9.92 MB
21.09 MB average
Total CPU:0.0039911250%
0.031193% average
Kernel CPU:0.00165206%
0.016088% average
User CPU:0.00233907%
0.015104% average
CPU cycles/sec:13,734,649
8,062,084 average
70 average
I/O reads/min:26.07 KB
435.61 KB average
I/O writes/min:1.63 KB
105.02 KB average
Memory:2.71 MB
Total CPU:0.0014003487%
Kernel CPU:0.00083069%
User CPU:0.00056966%
CPU cycles/sec:325,842
I/O reads/min:12 Bytes
I/O writes/min:2 Bytes
Memory:16.06 MB
Total CPU:0.0029653698%
Kernel CPU:0.00229504%
User CPU:0.00067033%
CPU cycles/sec:209,679
I/O reads/min:1.11 KB
I/O writes/min:410 Bytes

How do I remove PerfectDisk Home Premium?

You can uninstall PerfectDisk Home Premium 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 Home Premium, 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 Home Premium.

Win 7 (SP1) 74%
Win 7 2%
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 76.74%
Windows 10 20.93%
Windows Vista 2.33%
Which OS releases does it run on?
Windows 7 Home Premium 58.14%
Windows 7 Professional 9.30%
Windows 7 Ultimate 9.30%
Windows 8.1 Pro 4.65%
Windows 8.1 4.65%
Windows Vista Home Premiu... 2.33%

Distribution by countryGeography

69.49% of installs come from the United States
Which countries install it?
  United States 69.49%
  United Kingdom 8.47%
  Australia 5.08%
  Canada 5.08%
  Finland 1.69%
  Sweden 1.69%
  Greece 1.69%
  Israel 1.69%
  Germany 1.69%
  DK 1.69%
  Slovakia 1.69%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 36.36%
Hewlett-Packard 27.27%
Acer 9.09%
ASUS 9.09%
American Megatrends 6.06%
Samsung 3.03%
Lenovo 3.03%
Alienware 3.03%
Common models
Dell OptiPlex 745 ... 5.71%
Dell XPS 8500 5.71%
HP Pavilion dv6 Notebook ... 5.71%
LENOVO 2522AZ1 2.86%
HP Pavilion 17 Notebook P... 2.86%
Dell Precision M4500 2.86%

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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