84,488,480 programs installed

Should I remove Windows Live OneCare safety scanner?

What percent of users and experts removed it?
9% remove it91% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #3,757
United States Rank #3,577
Reach 0.1457%
Lifespan of installation (until removal)
< 21.52 days
634.90 days >
Average installed length: 333.59 days

Other programs by Microsoft

Windows Live OneCare safety scanner

What is Windows Live OneCare safety scanner?

Windows Live OneCare Safety Scanner was an online scanning, PC cleanup, and diagnosis service to help remove of viruses, spyware/adware, and other malware. It was a free web service that was part of Windows Live. Windows Live OneCare Safety Scanner offered a free online scanning and protection from threats. The Windows Live OneCare Safety Scanner must be downloaded and installed to your computer to scan your computer. The "Full Service Scan" looks for common PC health issues such as viruses, temporary files, and open network ports. It searches and removes viruses, improves a computer's performance, and removes unnecessary clutter on the PC's hard disk. The user can choose between a "Full Scan" (which can be customized) or a "Quick Scan". The service also provides a virus database, information about online threats, and general computer security documentation and tools.


The primary executable is named wlschost.exe. The setup package generally installs about 14 files and is usually about 43.97 MB (46,105,750 bytes).

Program detailsProgram details

URL: windows.microsoft.com/en-us/windows/security-essentials-onecare
Installation folder: C:\Program Files\Windows Live Safety Center
Uninstaller: C:\Program Files\Windows Live Safety Center\wlschost.exe -Uninstall
Estimated size: 43.97 MB

Program filesFiles installed by Windows Live OneCare safety scanner

Program executable:wlschost.exe
Name:Microsoft® Windows Live OneCare
Windows Live OneCare safety scanner host
Path:C:\Program Files\Windows Live Safety Center\wlschost.exe
Additional files:
  • scnavas.dll - Microsoft® Windows Live OneCare (Windows Live OneCare Safety Virus-Spyware Scanner Module)
  • scndh.dll - Windows Live OneCare Safety DiskHealth Scanner Module
  • scnns.dll - Windows Live OneCare Safety Network Scanner Module
  • scnPI.dll - Windows Live OneCare Safety PlatformInfo Scanner Module
  • scnrc.dll - Windows Live OneCare Safety RegistryCleaner Scanner Module
  • uninstall.exe - Windows Live OneCare safety scanner Installer UI DLL
  • wlscCore.dll - Windows Live OneCare Safety Scanner Core Module
  • wlscCtrl2.dll - Windows Live OneCare Safety Scanner ActiveX Module
  • wlscuploader.exe - Windows Live OneCare Safety Scanner Malware Sample Upload Module
  • SetupOneCare.exe - Microsoft Windows Live OneCare (OneCare Setup Package)
  • mpengine.dll - Microsoft Malware Protection (Microsoft Malware Protection Engine)
  • mputils.dll - Windows Defender (Malware Protection Utilities Dynamic Library)
  • custsat.dll - custsat

How do I remove Windows Live OneCare safety scanner?

You can uninstall Windows Live OneCare safety scanner 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 Windows Live OneCare safety scanner, 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 Windows Live OneCare safety scanner.

Win 7 (SP1) 57%
Win XP 0%
Uninstall it 9%
Keep it 91%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 62.08%
Windows Vista 32.80%
Windows 10 4.84%
Windows XP 0.28%
Which OS releases does it run on?
Windows 7 Home Premium 42.39%
Windows Vista Home Premiu... 27.16%
Windows 7 Ultimate 10.68%
Windows 7 Professional 6.79%
Windows Vista Home Basic 3.71%
Windows 10 Home 2.70%

Distribution by countryGeography

48.50% of installs come from the United States
Which countries install it?
  United States 48.50%
  France 5.29%
  United Kingdom 5.07%
  Canada 4.79%
  Italy 3.33%
  Brazil 2.91%
  Taiwan 2.91%
  Spain 2.77%
  Germany 2.72%
  Netherlands 2.27%
  Sweden 1.90%
  Belgium 1.54%
  Portugal 1.46%
  Mexico 1.09%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 33.96%
Dell 25.26%
Acer 17.86%
Toshiba 10.87%
ASUS 2.00%
Samsung 1.76%
Sony 1.53%
Intel 1.00%
Medion 0.76%
Gateway 0.53%
Common models
HP Pavilion dv6 Notebook ... 7.09%
HP Pavilion dv7 Notebook ... 5.74%
Dell Inspiron 1545 4.73%
Dell Inspiron 530 3.83%
Acer Aspire 5738 2.82%
HP Pavilion dv4 Notebook ... 2.59%

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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