82,399,351 programs installed

Should I remove Windows Live OneCare?

What percent of users and experts removed it?
8% remove it92% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #39,190
United States Rank #31,517
Reach 0.0028%


2.5.2900.30 12.82%
2.5.2900.28 12.82%
2.5.2900.24 2.56%
2.5.2900.03 2.56%
2.5.2795.6 56.41%
1.6.2111.38 12.82%

Other programs by Microsoft

Windows Live OneCare

What is Windows Live OneCare?

Windows Live OneCare was a computer security and performance enhancement service developed by Microsoft for Microsoft Windows. Microsoft designed OneCare as part of a cloud-based computing service named Windows Live.


The most common release is 2.5.2795.6, 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. The setup package generally installs about 52 files and is usually about 370.09 MB (388,068,497 bytes).

Program detailsProgram details

URL: www.microsoft.com
Help link: go.microsoft.com/fwlink/?LinkId=40226
Installation folder: C:\Program Files\microsoft windows onecare live
Uninstaller: "C:\Program Files\Microsoft Windows OneCare Live\OCSetup.exe" /u
Estimated size: 370.09 MB

Program filesFiles installed by Windows Live OneCare

  • msfwapi.DLL - OneCare Firewall RPC API Implementation
  • atl71.dll - Microsoft® Visual Studio .NET (ATL Module for Windows (Unicode))
  • msvcp71.dll - Microsoft® C++ Runtime Library
  • msvcr71.dll - Microsoft® C Runtime Library
  • mpscatapi.dll - MPS Catalog API library
  • msidcrl40.dll - Microsoft® Identity CRL (IDCRL Dynamic Link Library)
  • AVShellExt.dll - Windows Live OneCare (Windows Live OneCare AV Shell Extension)
  • BackupEngine.dll - BackupEngine
  • BackupWizard.exe - Backup Wizard
  • Cert.dll - Windows Live OneCare Platform
  • CleanupWizard.exe - Cleanup Wizard
  • clientinterop.dll - Windows Live OneCare Service Client Interop
  • ConflictingAppModule.dll - Conflicting Applications Module
  • GtCC.exe - Windows Live OneCare User Agent
  • GtOneCareClient.dll - GtOneCareClient
  • maintenancediskcleanupserv.exe - Maintenance Disk Cleanup Server
  • OcHealthMon.exe - Windows Live OneCare Health Monitor Service
  • OCHelpAgent.dll - OCHelpAgent
  • OCHelpAgentClientInterop.dll - Windows Live OneCare Help Agent Client Interop
  • OCSetup.exe - Windows Live OneCare Setup
  • OCSetupRO.dll - Windows Live OneCare Resources
  • oczip.exe - Windows Live OneCare Zip Utility
  • OneCareRestore.exe - Windows Live OneCare Recovery
  • OneCareScanner.exe - Windows Live OneCare CommandLine Antivirus Scanner
  • OneCareSupport.exe - Windows Live OneCare Support Tool
  • OneCareSvcWrapper.exe - Windows Live OneCare Service Wrapper
  • OneCareSvcWrapperPS.dll - Windows Live OneCare Service Wrapper PS
  • providers.dll - Providers
  • providersclient.dll - Providers Client
  • PSShellExt.dll - Windows Live OneCare PS Shell Extension
  • RestoreWizard.exe - Restore Wizard
  • SafeModeAVScanner.exe - Windows Live OneCare Safe Mode Antivirus Scanning Utility
  • TelemetryAgent.dll - TelemetryAgent
  • UPnPLib.dll - Windows OneCare Live
  • winss.exe - Windows Live OneCare Service
  • winsscommon.dll - Windows Live OneCare Common
  • WinSSIntro.exe - Windows Live OneCare Introduction
  • winssnotify.exe - Windows Live OneCare Tray Notification
  • winssnotifye.exe - Windows Live OneCare Alerts
  • winssnotifylib.dll
  • WinSSPlatform.dll
  • WinssRecRO.dll - Windows Live OneCare Resource
  • WinSSRes.dll
  • WinssRO.dll
  • WinSSUI.exe
  • ssgen.dll - Microsoft® CoReXT (STS Challenge-Response Generator)
  • WinssRec.exe
  • WinSSWebAgent.dll - Windows Live OneCare Web Agent
  • PidGen.dll - Microsoft PidGen (PidGen)

Program behaviorsBehaviors exhibited

2 Services
  • winss.exe runs as a service named 'Windows Live OneCare' (winss) "Helps manage PC security and overall health by providing virus and spyware monitoring, firewall, backup, and other services. If this service is stopped, this computer might be at risk from viruses and other threats.".
  • OcHealthMon.exe runs as a service named 'Windows Live OneCare Health Monitor' (OcHealthMon) "Helps recover the Windows Live OneCare service and improve service health. This services provides a backup mechanism to the Windows Live OneCare service and will attempt to recover it, if it is detected to be stopped.".
Startup File (All Users Run)
  • winssnotify.exe is loaded in the all users (HKLM) registry as a startup file name 'OneCareUI' which loads as "C:\Program Files\Microsoft Windows OneCare Live\winssnotify.exe".

How do I remove Windows Live OneCare?

Quickly and completely remove Windows Live OneCare from your computer by downloading "Should I Remove It?", its 100% FREE and installs in seconds (click the button below).
Or, you can uninstall Windows Live OneCare 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 Windows Live OneCare, 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 Windows Live OneCare.

Win Vista (SP2) 51%
Win 7 3%
Automatically starts? Yes
(Found in the run registry)
Uninstall it 8%
Keep it 92%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows Vista 89.74%
Windows XP 7.69%
Windows 7 2.56%
Which OS releases does it run on?
Windows Vista Home Premiu... 69.23%
Windows Vista Business 12.82%
Microsoft Windows XP 7.69%
Windows Vista Home Basic 5.13%
Windows 7 Ultimate 2.56%
Windows Vista Ultimate 2.56%

Distribution by countryGeography

51.02% of installs come from the United States
Which countries install it?
  United States 51.02%
  Iran 12.24%
  Australia 10.20%
  Canada 8.16%
  Germany 4.08%
  LY 2.04%
  Indonesia 2.04%
  Brazil 2.04%
  United Kingdom 2.04%
  Italy 2.04%
  Czech Republic 2.04%
  PR 2.04%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Sony 73.53%
Toshiba 17.65%
Acer 2.94%
American Megatrends 2.94%
Dell 2.94%
Common models
TOSHIBA Satellite P300 5.71%
Sony VGN-SR129E 2.86%
Sony VGN-NS230E 2.86%
Sony VGN-CS190N 2.86%
Dell Inspiron 1501 2.86%
Sony VGN-Z540N 2.86%

About Microsoft

Microsoft Corporation develops, manufactures, licenses and supports a variety of products and services related to computing.
Publisher URL: www.microsoft.com


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