Guide Extension Virus

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Guide Extension

“Guide” Extension is a browser hijacker capable of “stealing” the settings of your Chrome, Firefox, or Edge browser, and turning the program into a site-promoting platform. Once installed, Guide Extension will begin spamming the browser with ads, pop-ups, and box messages, and make unwanted changes to it.

Apps like the “Guide” extension virus can be quite tricky to fully get rid of

The browser hijacker category encapsulates a wide variety of apps, browser extensions, smaller software components, and even websites, all of which have one main common trait – they try to gain some amount of control in the user’s browser and then use that browser to promote certain sites, services, products, etc. Many hijackers are also known for collecting data from the targeted browser and then use it for optimizing their ads to for selling it to third-parties for extra profit.

It is typically very easy to spot a hijacker – symptoms like replaced browser search engine or starting page without permission or automatic page-redirects that reroute the browser to unknown websites are difficult not to notice. Additionally, the PC may become slower due to the constant generation of ads and some other processes that the hijacker may run in the background. It’s even possible that unwanted browser add-ons get installed without the user’s informed approval.

How high is the danger?

All those hijacker symptoms could seem quite unnerving and lead you to think that the system has been attacked by some highly-dangerous Trojan Horse, that could soon infect you with other threats, such as Ransomware, Spyware, or Rootkits. The good news is that Guide Extension and most other browser hijackers are mostly harmless, in the sens that they don’t have the ability to cause damage to anything on your computer. 

That said, they are also not apps to be ignored and left in the system or long periods of time. Even if Guide Extension isn’t designed to harm your files and system, it is still an app that does something that it shouldn’t, which could often mean that your computer is becoming less safe and secure. Take the ads for example – you have no real way of stopping them other than deleting the hijacker, and you could never know if the next one won’t send you to a phishing or malware-distributing page, should you accidentally click on it. Granted, the risk of landing a Ransomware or a Trojan in this way is still relatively low, it’s still an unnecessary risk, especially since you don’t get anything in return. It is exceedingly rare for a browser hijacker to actually have any useful and helpful qualities, so there’s really no reason for that app to be kept on the computer.

This is where the problem with the removal of Guide Extension comes into play – apps like “Guide” or “Viewer” extension can be quite tricky to fully get rid of. Fortunately, if you make sure to follow the guide we’ve included down below on this page, you should be able to manually eliminate the undesirable software. Furthermore, even if there’s something left behind from the hijacker after you are done with the guide, the professional removal tool linked on this page can help you fully clean your system, so that there’s no traced of Guide Extension left in it.


NameGuide Extension
Type Adware/Browser Hijacker
Detection Tool

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Remove Guide Extension Virus

To try and remove Guide Extension quickly you can try this:

  1. Go to your browser’s settings and select More Tools (or Add-ons, depending on your browser).
  2. Then click on the Extensions tab.
  3. Look for the Guide Extension extension (as well as any other unfamiliar ones).
  4. Remove Guide Extension by clicking on the Trash Bin icon next to its name.
  5. Confirm and get rid of Guide Extension and any other suspicious items.

If this does not work as described please follow our more detailed Guide Extension removal guide below.

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

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).


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. 

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

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    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. 

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

    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:

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

    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:

    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.

    • 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).

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

      Remove Guide Extension from Internet Explorer:

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

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

     Remove Guide Extension from Firefox:

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

    Remove Guide Extension from Chrome:

    Close Chrome. Navigate to:

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

    Rename it to Backup Default. Restart Chrome.

    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!

    About the author

    Brandon Skies

    Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

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