84,488,480 programs installed

Should I remove Norton Security Scan?

What percent of users and experts removed it?
53% remove it47% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #908
United States Rank #759
Reach 0.7560%
(Not enough data to show 30 day installation trends)
Uninstallation trends (last 30 days)
Lifespan of installation (until removal)
< 8.55 days
252.21 days >
Average installed length: 132.52 days


VersionDistribution 0.05% 0.38% 0.15% 0.09% 0.01% 0.87% 0.02% 0.05% 0.36% 0.01% 0.02% 0.01% 0.86% 0.01% 0.02% 1.68% 0.11% 0.03% 0.36% 0.02% 2.30% 0.32% 5.16% 0.09% 0.03% 0.02% 2.17% 0.11% 2.97% 1.95% 24.78% 6.96% 0.08% 3.36% 7.99% 1.45% 0.77% 0.13% 3.70% 1.55% 0.40% 0.07% 2.19% 6.03% 0.63% 0.17% 2.20% 0.57% 0.39% 0.42% 0.01%
72 versions

Other programs by Symantec

Norton Security Scan

What is Norton Security Scan?

Norton Security Scan is a software tool designed to help you understand if your computer is currently protected from known threats. Norton Security Scan will scan your computer and identify if there are existing viruses, worms, spyware, unwanted adware or Trojans residing on your computer. Norton Security Scan checks to see how your computer is currently protected. The software is sometimes bundled with various download managers (pay-per-install monetization programs) or can be downloaded from the web site.

About  (from Symantec)

Scans look at files, running processes, the boot sector and other parts of your computer to look for viruses and spyware. This is generally done by looking in each file for an actual virus or spyware. A quick scan looks at the most common places that are infected by viruses and spyware while a full scan checks every fi...  Read more


The most common release is, with over 98% of all installations currently using this version. The program adds a toolbar to Microsoft Internet Explorer. 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 symbos.exe. The setup package generally installs about 66 files and is usually about 13.68 MB (14,344,025 bytes).
  • Integrates into the web browser
Norton Security Scan has been found to be bundled with 3rd party software. If you have not purposefully installed this, you should be safe uninstalling it.

Program detailsProgram details

URL: www.symantec.com/techsupp
Installation folder: C:\Program Files\Norton Security Scan
Uninstaller: C:\Program Files\Norton Security Scan\Engine\\InstWrap.exe
Estimated size: 13.68 MB
Language: English (United States)

Program filesFiles installed by Norton Security Scan

Program executable:symbos.exe
Name:Standalone Scanner Components
Report Card
Path:C:\Program Files\Norton Security Scan\symbos.exe
Additional files:
  • ccL100U.dll - Symantec Security Technologies (Symantec Library)
  • ccL120U.dll
  • ccL80U.dll
  • ccLib.dll
  • ccScanw.dll - Symantec Scan Engine
  • ccVrTrst.dll - Symantec Trust Validation Engine
  • msl.dll - Symantec MS Light Library
  • BilBDRes.dll - Standalone Scanner Components (Norton Security Scan)
  • Config.dll
  • dec_abi.dll - Symantec Decomposer Component (Symantec Decomposer Component Library)
  • DefLoad.exe - Norton Security Scan Definitions Updater
  • DefUtDCD.dll - Symantec Definition Utilities
  • DrvScan.dll
  • HeartBt.dll
  • Instwrap.exe
  • InstWRes.dll
  • NPIWrap.dll
  • Nss.exe
  • NssMetro.exe
  • PrdDtRes.dll
  • RevList.dll
  • RptCdRes.dll - Report Card
  • SAUpdt.dll - Norton Standalone Updater
  • ScanCore.dll - Norton Security Scan Core
  • ScanRes.dll
  • ScanText.dll
  • SKU.dll
  • SKUCfg.dll
  • SKURes.dll
  • ToasterHelper.dll
  • naveng32.dll - Symantec Antivirus Engine (AV Engine)
  • navex32a.dll
  • SymCCIS.dll - Norton Product Installer (SymCCIS)
  • SymCCISExe.exe
  • diFVal.dll - Norton Security Scan (DING File Validation)
  • diLueCbk.dll - InstallToolBox (InstallToolBox LUE Callback)
  • SymInstallStub.exe - SymInstallStub
  • cceraser.dll - ERASER ENGINE (Symantec Eraser Engine)
  • pePIDyn.dll - PE Components (Norton Product Identifier)
  • pePIRes.dll - Norton Product Identifier Resources
  • ecmldr32.dll - ECOM Loader (Symantec Engine Common Object Model Loader)
  • ecmsvr32.dll - ECOM Server (Symantec Engine Common Object Model Server)
  • SymDltCl.dll - SymDelta (SymDelta client DLL)
  • SymCCISE.exe - SymCCIS
  • SymHTML.dll - SymHTML
  • NPnP.dll - NPnP (Norton)

Program behaviorsBehaviors exhibited

Internet Explorer BHO
  • Nss.exe is installed in Internet Explorer as a BHO (Browser Helper Object) under the name 'AVG Security Toolbar' with the class of {A057A204-BACC-4D26-9990-79A187E2698E}.
Internet Explorer Toolbar
  • Nss.exe is loaded as Internet Explorer Toolbar with the name 'AVG Security Toolbar' with the class of {A057A204-BACC-4D26-9990-79A187E2698E} (988401666).
2 Scheduled Tasks
  • Nss.exe is scheduled as a task named 'Norton Security Scan for seang' (runs weekly on Thursdays at 8:09 AM).
  • InstWrap.exe is scheduled as a task with the class '{BA155EB0-263A-4DDE-941A-1EAF4BB5D942}' (runs on registration).

Program resource utilizationResource utilization averages

Total CPU:0.0016663444%
0.031193% average
Kernel CPU:0.00066756%
0.016088% average
User CPU:0.00099878%
0.015104% average

How do I remove Norton Security Scan?

You can uninstall Norton Security Scan 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 Norton Security Scan, 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 Norton Security Scan.
  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.

How do I reset my web browser?

If your web browser homepage and search settings have been modfied by Norton Security Scan you can restore them to their previous default settings.
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome

Win 7 (SP1) 53%
Win 10 0%
Plugs into Internet Explorer
Uninstall it 53%
Keep it 47%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 58.16%
Windows 10 22.38%
Windows Vista 12.65%
Windows XP 6.82%
Which OS releases does it run on?
Windows 7 Home Premium 37.12%
Windows Vista Home Premiu... 9.98%
Windows 7 Ultimate 9.83%
Windows 7 Professional 7.54%
Windows 8.1 7.46%
Microsoft Windows XP 6.75%

Distribution by countryGeography

58.25% of installs come from the United States
Which countries install it?
  United States 58.25%
  United Kingdom 5.43%
  Canada 2.94%
  Germany 2.87%
  France 2.26%
  Brazil 2.12%
  Italy 1.52%
  Netherlands 1.48%
  Australia 1.46%
  Belgium 0.96%
  MA 0.85%
  Israel 0.82%
  Sweden 0.80%
  Spain 0.79%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 29.30%
Dell 24.32%
Acer 18.02%
Toshiba 9.32%
ASUS 7.65%
Lenovo 3.69%
Samsung 2.81%
Intel 0.95%
American Megatrends 0.79%
Common models
HP Pavilion dv6 Notebook ... 5.55%
HP Pavilion g6 Notebook P... 4.98%
Dell Inspiron 1545 3.65%
HP 2000 Notebook PC 2.58%
HP Pavilion g7 Notebook P... 2.28%

About Symantec

Symantec developers security software for business and consumers and helps customers protect their computers, information, identities and infrastructure by delivering software and services that address risks to security with various products such as Norton AntiVirus, Internet security, and anti-spyware products e.
Publisher URL: www.symantec.com


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