84,488,480 programs installed

Should I remove BrowserDefender?

What percent of users and experts removed it?
80% remove it20% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #4,038
United States Rank #6,570
Reach 0.1337%
Lifespan of installation (until removal)
< 10.54 days
310.80 days >
Average installed length: 163.30 days

Other programs by Bit89 Inc


What is BrowserDefender?

PerformerSoft/Bit89 BrowserDefender, a variant of the Browser Protector Software is a web browser add-in classified mostly a potentially unwanted application that used to be bundled with PerformerSoft products including PC Performer. BrowserDefender is designed to protect its bundled programs and make sure they remain installed or unchanged by other third party programs. It does this by preventing changes to the registry by other programs including the web browser itself. It runs in the background as a Windows service with full administrator privileges in order to help prevent removal.

About  (from Bit89 Inc)

Keeps your browsers safe from homepage, search providers, extensions and other hijacks. Easy, comprehensive and FREE anti-hijack browser protection for Microsoft Internet Explorer, Mozilla Firefox and Google Chrome. BrowserProtect is a browser anti-hijack solution to protect your browser against obtrusive attempts to h...  Read more


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 software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with. The primary executable is named BrowserDefender.exe. A majority of users end up uninstalling this less than a week of it being installed. The setup package generally installs about 5 files and is usually about 7.88 MB (8,266,060 bytes).
  • Malware detected in the program
  • Adds a background Windows Service
  • Known to reinstall itself
  • Delivered through a thrid-party offer
  • This program has a poor reputation
  • The experts agree, you should remove it!
Warning, multiple anti-virus scanners have detected possible malware in BrowserDefender.
BrowserDefender.exe (daf56ec5e652f629d6d2b3930ff199f6) has been flagged by the following 11 scanners:
Anti-Virus softwareVersionDetection
Comodo Security 16839 Application.Win32.Bprotect.~L
Dr.Web Adware.BGuard.27
ESET-NOD32 7.8738 a variant of Win32/bProtector.A
G Data 13.8.22 Win32.Application.BHO
K7 AntiVirus 13.170.9419 Riskware
K7GW Riskware
Kaspersky UDS:DangerousObject.Multi.Generic
McAfee 5600.7181 Adware-Bprotect!DAF56EC5E652
McAfee-GW-Edition 7.7181 Adware-Bprotect!DAF56EC5E652
TrendMicro-HouseCall 7.2.240 TROJ_GEN.F47V0816
VIPRE Antivirus 20954 Bprotector (fs)
BrowserDefender 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.bit89.com/contact.html
Help link: www.bit89.com/uninstall.html
Installation folder: C:\ProgramData\browserdefender\2.6.1339.144\{c16c1ccb-7046-4e5c-a2f3-533ad2fec8e8}
Uninstaller: "C:\ProgramData\BrowserDefender\2.6.1339.144\{c16c1ccb-7046-4e5c-a2f3-533ad2fec8e8}\uninstall.exe" /Uninstall /{15D2D75C-9CB2-4efd-BAD7-B9B4CB4BC693}
Estimated size: 7.88 MB

Program filesFiles installed by BrowserDefender

Program executable:BrowserDefender.exe (Malware detected)
Name:Application Manager
Signed by:Bit89 Inc.
Additional files:
  • uninstall.exe (by PerformerSoft) - Application Manager
  • BrowserDefender.dll (by PerformerSoft) - Protector
  • (Malware detected) BrowserDefender.exe
  • lpk.dll
  • uninstaller.exe

Program behaviorsBehaviors exhibited

Scheduled Task
  • BrowserDefender.exe is scheduled as a task with the class '{1674ACE6-421B-4594-8603-031EA7D2BE0B}' (runs on registration).
  • BrowserDefender.exe runs as a service named 'BrowserDefendert' (BrowserDefendert) "Your browser protector service".
Windows Firewall Allowed Program
  • BrowserDefender.exe is added as a firewall exception for 'C:\ProgramData\BrowserDefender\2.6.1519.190\{c16c1ccb-7046-4e5c-a2f3-533ad2fec8e8}\BrowserDefender.exe'.

Program resource utilizationResource utilization averages

Memory:5.04 MB
21.09 MB average
Total CPU:0.0004671566%
0.031193% average
Kernel CPU:0.00023477%
0.016088% average
User CPU:0.00023239%
0.015104% average
I/O reads/min:460 Bytes
435.61 KB average
I/O writes/min:11 Bytes
105.02 KB average

How do I remove BrowserDefender?

You can uninstall BrowserDefender 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 BrowserDefender, 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 BrowserDefender.
  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) 57%
Win 8.1 0%
Windows Service? Yes
(Installs a service)
Uninstall it 80%
Keep it 20%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 67.43%
Windows 10 14.30%
Windows XP 11.49%
Windows Vista 6.75%
Windows Server 2003 0.04%
Which OS releases does it run on?
Windows 7 Home Premium 29.56%
Windows 7 Ultimate 22.15%
Microsoft Windows XP 11.23%
Windows 7 Professional 10.20%
Windows 8 7.03%
Windows Vista Home Premiu... 4.97%

Distribution by countryGeography

25.95% of installs come from the United States
Which countries install it?
  United States 25.95%
  Germany 8.58%
  Brazil 5.77%
  United Kingdom 5.04%
  Italy 4.53%
  France 3.14%
  India 2.63%
  Poland 2.63%
  Taiwan 2.59%
  Turkey 2.55%
  Japan 2.23%
  Indonesia 1.86%
  MK 1.75%
  Mexico 1.64%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 24.71%
Acer 20.58%
Dell 19.16%
ASUS 9.87%
Toshiba 6.19%
Samsung 5.10%
Lenovo 3.42%
American Megatrends 2.39%
Intel 1.61%
Sahara 1.10%
Common models
HP Pavilion dv6 Notebook ... 6.21%
HP Pavilion g6 Notebook P... 6.03%
HP Pavilion dv7 Notebook ... 3.58%
HP 2000 Notebook PC 2.64%
HP Pavilion g7 Notebook P... 2.07%
Dell Inspiron 1525 1.69%

About Bit89 Inc

Bit89 Inc. is the owner of Bit89.
Publisher URL: www.bit89.com

comments1 comment

user comment
expert comment
AdwareBuster (Expert)over a year ago
This adware (really malware) is signed by MediaTechSoft Inc. (which is PerformerSoft). The software is bundled by various downloaders from the typical adware crews including: Bechiro S.L., Apps Installer S.L., Somoto Ltd., Tuguu SL and INSTALLER TECHNOLOGY CO. to name a few. The BD app is packaged with some legitimate software through the aforementioned distributors.