74,139,804 programs installed

Should I remove CyberDefender PC Optimizer?

What percent of users and experts removed it?
68% remove it32% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
United States Rank #40,537
Reach 0.0006%


2.0.648.14406 50.00%
2.0.648.13814 50.00%

CyberDefender PC Optimizer

What is CyberDefender PC Optimizer?

This is a PC optimization program that is supposed to increase the speed of computer by removing invalid entries the computer's registry. The trial version will perform a scan and identify issues while the user will need to unlock the software for a yearly auto-renewing subscription charge.

About  (from USTechSupport)

Sick of pop-ups, crashes, and slow program performance? PC Optimizer can speed up your PC in minutes by removing the junk files and errors that have built up on your computer over time. Plus, the all-new 2012 edition features an upgraded scanning engine that finds and removes more errors than ever! Remove the computer...  Read more


The most common release is 2.0.648.14406, with over 98% of all installations currently using this version. During setup, the program creates a startup registration point in Windows in order to automatically start when any user boots the PC. 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. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The primary executable is named USTSPCO.exe. Many users end up uninstalling this after less than a month of it being installed. The setup package generally installs about 42 files and is usually about 38.61 MB (40,484,688 bytes). The installed file USTSPCOCheckUpdate.exe is the auto-update component of the program which is designed to check for software updates and notify and apply them when new versions are discovered.

Program detailsProgram details

URL: www.cyberdefender.com/pc-optimizer.html
Help link: www.ustechsupport.com
Installation folder: C:\Program Files\USTechSupport\PC Optimizer\
Uninstaller: C:\Config.msi\{AB56B977-66D9-411E-B4AA-F4BAD1AD5EBF}\PCOSetup_1.0.7.0.exe /uninstall
Estimated size: 38.61 MB

Program filesFiles installed by CyberDefender PC Optimizer

Program executable:USTSPCO.exe
Name:PC Optimizer
Signed by:US Tech Support LLC
Path:C:\Program Files\USTechSupport\PC Optimizer\USTSPCO.exe
MyCleanPC PC Optimizer is the exact same rebranded verion of MyCleanPC that requires you to purchase an activation code for the full version of MyCleanPC.
Additional files:
  • AsInvoker.exe - PC Optimizer (PC Optimizer - UAC Launcher)
  • asores.dll
  • Downloader.dll
  • HighestAvailable.exe
  • KillUSTSPCOProcesses.exe - PC Optimizer - Install Helper
  • RequireAdministrator.exe
  • USTSPCO.exe
  • USTSPCOCheckUpdate.exe - PC Optimizer - Checking for Updates
  • USTSPCODefragServiceManager.exe
  • USTSPCODefragSrv.exe - PC Optimizer - Defrag Service
  • USTSPCODefragSrv64.exe
  • USTSPCODiskOptimizer.exe - PC Optimizer - Disk Optimizer
  • USTSPCOHelper.dll
  • USTSPCOPrivacyProtector.exe - PC Optimizer - Privacy Protector
  • USTSPCORegClean.exe - PC Optimizer - Registry Cleaner
  • USTSPCORegistryOptimizer.exe - PC Optimizer - Registry Optimizer
  • USTSPCOsys.dll
  • USTSPCOSysFileBakRes.exe - PC Optimizer - System Files Backup and Restore
  • USTSPCOSystemCleaner.exe - PC Optimizer - System Cleaner
  • USTSPCOuninstaller.exe - PC Optimizer - Uninstall Helper
  • unrar.dll (by Alexander Roshal) - RAR decompression library
  • Network.dll (by CyberDefender) - CyberDefender
  • zlibwapi.dll - zlib (zlib data compression library)
  • ASEng.dll
  • asohtm.dll
  • unins000.exe - Setup/Uninstall

Program behaviorsBehaviors exhibited

Scheduled Task
  • USTSPCO.exe is scheduled as a task named 'USTSPCO-USTSPCOOneClickCare' (runs weekly on Fridays at 5:53 PM).
Scheduled Task (Boot/Login)
  • USTSPCO.exe is automatically launched at startup through a scheduled task named CleanPCNow PC Optimizer.
2 Services
  • USTSPCODefragSrv.exe runs as a service named 'USTSPCODiskOptimizer' (USTSPCODiskOptimizer).
  • USTSPCODefragSrv64.exe runs as a service named 'USTSPCODiskOptimizer' (USTSPCODiskOptimizer).
Startup File (All Users Run)
  • USTSPCO.exe is loaded in the all users (HKLM) registry as a startup file name 'MyCleanPC PC Optimizer' which loads as "C:\Program Files\USTechSupport\PC Optimizer\USTSPCO.exe" /autorun.

How do I remove CyberDefender PC Optimizer?

Quickly and completely remove CyberDefender PC Optimizer from your computer by downloading "Should I Remove It?", its 100% FREE and installs in seconds (click the button below).
Download "Should I Remove It?", it's FREE!Remove CyberDefender PC Optimizer from your computer.
Or, you can uninstall CyberDefender PC 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: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program CyberDefender PC Optimizer, click it, and then do one of the following:
    • Windows Vista/7/8: 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 CyberDefender PC Optimizer.
  4. If for some reason uninstallation fails, please install Microsoft's uninstall fixer utility which will help fix problems with programs that can't be uninstalled at support.microsoft.com.

Win 7 (SP1) 50%
Win 8 13%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 68%
Keep it 32%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 50.00%
Windows Vista 25.00%
Windows XP 12.50%
Windows 8 12.50%
Which OS releases does it run on?
Windows 7 Home Premium 37.50%
Windows Vista Home Premiu... 25.00%
Microsoft Windows XP 12.50%
Windows 7 Professional 12.50%
Windows 8 12.50%

Distribution by countryGeography

100.00% of installs come from the United States
Which countries install it?
  United States 100.00%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 42.86%
Lenovo 14.29%
Gateway 14.29%
Dell 14.29%
Acer 14.29%
Common models
LENOVO IdeaPad Z580 14.29%
HP-Pavilion FQ565AA-ABA a... 14.29%
Hewlett-Packard p6-2376 14.29%
HP Pavilion dv7 Notebook ... 14.29%
GATEWAY GT5404 14.29%
Dell XPS 8300 14.29%


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