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Parasite may reinstall itself multiple times if you don't delete its core files. We recommend downloading SpyHunter to scan for malicious programs installed with it. This may save you hours and cut down your time to about 15 minutes. 

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More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.


Windows Defender Browser Protection

Windows Defender Browser Protection is an application that is inherently unwanted and belongs to the browser hijacker class of software, it should not be mistaken with the Windows Defender Browser Protection for Google Chrome which is a legitimate browser extension. If Windows Defender Browser Protection is present in your system, you will most probably experience automatic page redirects to ad-supported sites and constant exposure to aggressive pop-up banner ads.

Windows Defender Browser Protection

The Windows Defender Browser Protection Pop up

Each time you try to use your browser, Windows Defender Browser Protection will ensure that your screen gets filled with specific promotional materials and prompts that invite you to click on different pages. If you’ve recently found your favorite web browser (be that Firefox, Chrome, Edge or some other popular web browsing app) being hijacked by Windows Defender Browser Protection, it is possible that you wonder how to remove any unnecessary and maybe distracting advertisements that this software has started to show across your entire screen. Or you are eager to learn how to uninstall the weird homepage and the unapproved search engine that Windows Defender Browser Protection has replaced your default one with. That’s why, in this article, we will provide you with a comprehensive removal guide and a professional self-help tool that can quickly and reliably deal with Windows Defender Browser Protection in no time.

Windows Defender Browser Protection on Firefox

Windows Defender Browser Protection is an aggressive application that produces thousands of pay per click ads while you surf the web through your main web browser, unlike the Windows Defender Browser Protection for Google Chrome browser extension developed my Microsoft. In general, this app is not something that you should be afraid of because it lacks the harmful abilities of classical viruses and malware.

When you open a new tab or begin a new browsing session, Windows Defender Browser Protection will typically take over your browser and redirect you to some pre-defined websites full of paid ads. This allows for the browser hijacker to effectively generate pay-per-click or pay-per-view revenue for its creators and to support specific websites and deals that need more traffic and visibility. However, web users who have to endure the random redirects can not only get quite frustrated but also can accidentally be led to questionable web locations that contain viruses, Trojans, Ransomware and other malware.

Can Windows Defender Browser Protection be a threat to your computer?

Many people believe that a “browser hijacker” must be a term used for some kind of strange browser virus or malware that is extremely hard to remove and prevents them from browsing the web normally. That’s why our “How to remove” team frequently gets asked by web users whether Windows Defender Browser Protection will harm their computer similarly to a Ransomware infection or Trojan horse virus. Fortunately, browser hijacker programs are normally not a threat to a computer’s security. They are only apps that usually display ads and different promotions during regular web searches. Therefore, it is unlikely for a program like Windows Defender Browser Protection to corrupt your OS records, hack your accounts or do anything that can damage your system.

Nonetheless, most browser hijackers may use your system resources to conduct some dubious background activities such as monitoring your web browsing history and matching your recent search queries to certain sponsored ads. In addition, these applications can make the hijacked browser unresponsive or cause it to crash or freeze, which, in turn, can make it impossible for you to surf the web normally. Not to mention that Windows Defender Browser Protection and other such pieces of software can redirect you to pages of a questionable reputation where real viruses and security hazards may lurk. We, therefore, propose the following removal guide to quickly and efficiently uninstall Windows Defender Browser Protection before you click on something that will make you regret it.

SUMMARY:

Name Windows Defender Browser Protection
Type Browser Hijacker
Danger Level Medium (nowhere near threats like Ransomware, but still a security risk)
Symptoms Most Browser Hijackers can redirect user searches to random sites without being authorized to do so. 
Distribution Method Browser Hijackers can mostly be found in free program bundles as this is one of the most successful ways to download and install such software.
Detection Tool

Windows Defender Browser Protection Virus Removal

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide


Step1

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).

Step2

WARNING! READ CAREFULLY BEFORE PROCEEDING!

We get asked this a lot, so we are putting it here: Removing parasite manually may take hours and damage your system in the process. We recommend downloading SpyHunter to see if it can detect parasite files for you.

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab (the “Details” Tab on Win 8 and 10). Try to determine which processes are dangerous. 

malware-start-taskbar

Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at: https://howtoremove.guide/online-virus-scanner/




Scan Results


Virus Scanner Result
ClamAV
AVG AV
Maldet

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 

Step3

Hold together the Start Key and R. Type appwiz.cpl –> OK.

appwiz

You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

Type msconfig in the search field and hit enter. A window will pop-up:

msconfig_opt

Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.

Step4

To remove parasite on your own, you may have to meddle with system files and registries. If you were to do this, you need to be extremely careful, because you may damage your system.

If you want to avoid the risk, we recommend downloading SpyHunter
a professional malware removal tool.

More information on SpyHunter, steps to uninstallEULAThreat Assessment Criteria, and Privacy Policy.

Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

hosts_opt (1)

If there are suspicious IPs below “Localhost” – write to us in the comments.

Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

  1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
  2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
  3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.

DNS

Step5

  • After you complete this step, the threat will be gone from your browsers. Finish the next step as well or it may reappear on a system reboot.

Right click on the browser’s shortcut —> Properties.

NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).

browser-hijacker-taskbar-properties

Properties —–> Shortcut. In Target, remove everything after .exe.

ie9-10_512x512  Remove Windows Defender Browser Protection from Internet Explorer:

Open IE, click  IE GEAR —–> Manage Add-ons.

pic 3

Find the threat —> Disable. Go to IE GEAR —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

firefox-512 Remove Windows Defender Browser Protection from Firefox:

Open Firefoxclick  mozilla menu  ——-> Add-ons —-> Extensions.

pic 6

Find the adware/malware —> Remove.
chrome-logo-transparent-backgroundRemove Windows Defender Browser Protection from Chrome:

Close Chrome. Navigate to:

 C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called “Default” inside:

Rename the Folder to Backup Default

Rename it to Backup Default. Restart Chrome.

Step6

Type Regedit in the windows search field and press Enter.

Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


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