74,139,804 programs installed

Should I remove PureDef Toolbar?

What percent of users and experts removed it?
81% remove it19% keep it
Overall Sentiment
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How common is it?
Reach 0.0001%


1.36 100.00%

PureDef Toolbar

What is PureDef Toolbar?

PureDef Toolbar is an ad-supported (users may see additional banner, search, pop-up, pop-under, interstitial and in-text link advertisements) cross web browser plugin for Internet Explorer (BHO) and Firefox/Chrome (plugin) and distributed through various monetization platforms during installation. The browser extension includes various features that will modify the default or custom settings of the browser including the home page, search settings and in some cases will modify Internet Explorer's load time threshold, place a lock file within Firefox to prevent competing software from changing its settings as well as disable the browser's Content Security Policy in order to allow for cross site scripting of the plugin.


The program adds a toolbar to Microsoft Internet Explorer. The primary executable is named Toolbop.dll. A majority of users end up uninstalling this less than a week of it being installed. The setup package is about 2.69 MB (2,819,558 bytes) when donwloaded.
  • Malware detected in the program
  • Integrates into the web browser
  • Injects advertisements unassociated with the underlying web page
  • Hijacks the web browser's home page
  • This program has a poor reputation
  • The experts agree, you should remove it!
Warning, multiple anti-virus scanners have detected possible malware in PureDef Toolbar.
Toolbop.dll (1b32410286f78913417a2def1c5eb269) has been flagged by the following 2 scanners:
Anti-Virus softwareVersionDetection
Dr.Web DLOADER.Trojan
Symantec 5/26/2013 rev. 1 Suspicious.Insight

Program detailsProgram details

URL: www.Search.us.com
Installation folder: C:\users\user\appdata\roaming\search.us.com\puredef toolbar
Uninstaller: C:\users\user\appdata\Roaming\Search.us.com\PureDef Toolbar\uninstall.exe
Estimated size: 2.69 MB

Program filesFiles installed by PureDef Toolbar

Program module:Toolbop.dll (Malware detected)
Toolbop toolbar
Path:C:\users\user\appdata\roaming\search.us.com\puredef toolbar\Toolbop.dll
Additional files:
  • (Malware detected) Toolbop.dll (by Tightrope Interactive) - ToolbopBar (Toolbop toolbar)
  • uninstall.exe

Program behaviorsBehaviors exhibited

Internet Explorer Toolbar
  • Toolbop.dll is loaded as Internet Explorer Toolbar with the name 'PureDef Toolbar' with the class of {E3A80BA5-D967-4eab-891F-A49CADD92835}.
Internet Explorer Web Browser
  • Toolbop.dll installs an IE Web Browser in Internet Explorer named 'PureDef Toolbar' with a class of {E3A80BA5-D967-4EAB-891F-A49CADD92835}.

How do I remove PureDef Toolbar?

Quickly and completely remove PureDef Toolbar 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 PureDef Toolbar from your computer.
Or, you can uninstall PureDef Toolbar 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 PureDef Toolbar, 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 PureDef Toolbar.
  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 PureDef Toolbar you can restore them to their previous default settings.
Microsoft Internet Explorer
Mozilla Firefox
Google Chrome
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Plugs into Internet Explorer
Uninstall it 81%
Keep it 19%
Windows 7 (SP1)

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?
MSI 50.00%
Acer 50.00%


user comment
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