The OneSearch is a browser hijacker which could bring various problems to your computer. Once installed, it can introduce changes to your web-browser’s settings, making your new tab page, search engine by default and start page to become its own web page. You may have certain problems such as being redirected to intrusive websites, receiving a huge number of intrusive pop up advertisements, and user information being gathered without any knowledge, while the OneSearch is installed on your system.
The OneSearch makes unwanted changes to web-browser settings
If your personal computer has been infected with OneSearch hijacker you will be forced to use its own search engine. It could seem not to be dangerous, but you still should be very careful, since it may show unwanted and malicious ads developed to trick you into buying certain questionable programs or products, provide search results that may redirect your internet browser to some deceptive, misleading or harmful web sites. We suggest that you use only the reliable search provider such as Google, Yahoo or Bing.
It’s not a good idea to have an unwanted application like OneSearch browser hijacker infection on your computer. The reason for this is simple, it doing things you don’t know about. The browser hijacker can be used to gather lots of your personal information which may be later transferred third party companies. You do not know if your home address, account names and passwords are safe. And of course you completely do not know what will happen when you click on any ads on the OneSearch page.
To find out how to delete OneSearch home page, we suggest to read the step-by-step instructions added to this blog post below. The guide was prepared by IT security researchers who discovered a way to remove the annoying OneSearch browser hijacker out of the machine.
How to remove OneSearch from Chrome, Firefox, IE, Edge
Not all undesired programs like browser hijacker that cause a reroute to OneSearch web page are easily uninstallable. You might see a new homepage, newtab, search provider and other type of undesired changes to the Firefox, Internet Explorer, Google Chrome and MS Edge settings and might not be able to figure out the program responsible for this activity. The reason for this is that many undesired programs neither appear in MS Windows Control Panel. Therefore in order to completely get rid of OneSearch , you need to perform the following steps. Read it once, after doing so, please print this page as you may need to exit your internet browser or restart your computer.
To remove OneSearch, complete the following steps:
- Manual OneSearch removal
- How to automatically delete OneSearch hijacker
- Use AdBlocker to block OneSearch and stay safe online
- Why has my start page and search provider changed to OneSearch?
- To sum up
Manual OneSearch removal
The few simple steps will help you get rid of OneSearch . These OneSearch removal steps work for the Mozilla Firefox, Edge, Internet Explorer and Google Chrome, as well as every version of Windows operating system.
Uninstall OneSearch related apps through the Control Panel of your PC
The best way to begin the system cleanup is to uninstall unknown and questionable applications. Using the MS Windows Control Panel you can do this quickly and easily. This step, in spite of its simplicity, should not be ignored, because the removing of unneeded apps can clean up the Microsoft Edge, Google Chrome, Firefox and IE from advertisements hijackers and so on.
Windows 10, 8.1, 8
Click the MS Windows logo, and then press Search 
. Type ‘Control panel’and press Enter like below.
Once the ‘Control Panel’ opens, press the ‘Uninstall a program’ link under Programs category as displayed below.
Windows 7, Vista, XP
Open Start menu and choose the ‘Control Panel’ at right as on the image below.
Then go to ‘Add/Remove Programs’ or ‘Uninstall a program’ (Microsoft Windows 7 or Vista) as shown below.
Carefully browse through the list of installed programs and remove all dubious and unknown programs. We recommend to click ‘Installed programs’ and even sorts all installed programs by date. After you’ve found anything questionable that may be the browser hijacker that responsible for browser redirect to the undesired OneSearch webpage or other PUP (potentially unwanted program), then choose this application and press ‘Uninstall’ in the upper part of the window. If the suspicious application blocked from removal, then use Revo Uninstaller Freeware to fully remove it from your PC system.
Delete OneSearch from Mozilla Firefox
The Mozilla Firefox reset will delete unwanted search engine and start page like OneSearch, modified preferences, extensions and security settings. It will keep your personal information such as browsing history, bookmarks, passwords and web form auto-fill data.
First, run the Mozilla Firefox and press 
button. It will show the drop-down menu on the right-part of the web browser. Further, press the Help button (
) as displayed below.
In the Help menu, select the “Troubleshooting Information” option. Another way to open the “Troubleshooting Information” screen – type “about:support” in the web-browser adress bar and press Enter. It will show the “Troubleshooting Information” page as displayed on the image below. In the upper-right corner of this screen, click the “Refresh Firefox” button.
It will show the confirmation prompt. Further, click the “Refresh Firefox” button. The Firefox will start a procedure to fix your problems that caused by the browser hijacker responsible for changing your web-browser settings to OneSearch. After, it is finished, click the “Finish” button.
Remove OneSearch from Google Chrome
If Google Chrome new tab page, start page and search engine were hijacked by OneSearch then ‘Reset Chrome’ is a solution {which} allows to revert back the browser to its factory state. To reset Chrome to the original defaults, follow the few simple steps below.
- First, start the Google Chrome and click the Menu icon (icon in the form of three dots).
- It will open the Chrome main menu. Choose More Tools, then click Extensions.
- You’ll see the list of installed plugins. If the list has the extension labeled with “Installed by enterprise policy” or “Installed by your administrator”, then complete the following guidance: Remove Chrome extensions installed by enterprise policy.
- Now open the Google Chrome menu once again, click the “Settings” menu.
- Next, click “Advanced” link, that located at the bottom of the Settings page.
- On the bottom of the “Advanced settings” page, press the “Reset settings to their original defaults” button.
- The Chrome will open the reset settings dialog box as shown on the screen above.
- Confirm the web-browser’s reset by clicking on the “Reset” button.
- To learn more, read the blog post How to reset Chrome settings to default.
Remove OneSearch home page from Internet Explorer
If you find that Microsoft Internet Explorer web-browser settings such as search provider by default, startpage and newtab page had been hijacked, then you may return your settings, via the reset web browser process.
First, run the IE, press 
) button. Next, click “Internet Options” as on the image below.
In the “Internet Options” screen select the Advanced tab. Next, press Reset button. The Internet Explorer will open the Reset Internet Explorer settings prompt. Select the “Delete personal settings” check box and click Reset button.
You will now need to reboot your system for the changes to take effect. It will remove browser hijacker which designed to reroute your web-browser to the OneSearch web-site, disable malicious and ad-supported web-browser’s extensions and restore the Internet Explorer’s settings like startpage, newtab page and search engine to default state.
How to automatically delete OneSearch hijacker
The hijacker can hide its components which are difficult for you to find out and remove completely. This may lead to the fact that after some time, the browser hijacker again infect your computer and modify certain settings of installed web browsers to OneSearch. Moreover, I want to note that it is not always safe to remove browser hijacker infection manually, if you do not have much experience in setting up and configuring the Windows operating system. The best method to scan for and remove hijackers is to run free malicious software removal programs.
How to automatically get rid of OneSearch with Zemana AntiMalware (ZAM)
We recommend using the Zemana Free. You can download and install Zemana Free to scan for and remove OneSearch search from your computer. When installed and updated, the malicious software remover will automatically scan and detect all threats exist on the computer.
Now you can setup and use Zemana to get rid of OneSearch search from your internet browser by following the steps below:
Please go to the following link to download Zemana install package called Zemana.AntiMalware.Setup on your personal computer. Save it on your MS Windows desktop or in any other place.
164113 downloads
Author: Zemana Ltd
Category: Security tools
Update: July 16, 2019
Run the installation package after it has been downloaded successfully and then follow the prompts to install this tool on your PC.
During installation you can change certain settings, but we advise you don’t make any changes to default settings.
When installation is finished, this malicious software removal utility will automatically launch and update itself. You will see its main window like below.
Now press the “Scan” button . Zemana Anti-Malware application will scan through the whole computer for the hijacker responsible for redirecting user searches to OneSearch. Depending on your PC system, the scan may take anywhere from a few minutes to close to an hour. When a malware, ad-supported software or potentially unwanted applications are found, the number of the security threats will change accordingly.
After Zemana Anti Malware (ZAM) has finished scanning your computer, Zemana will display a list of all threats found by the scan. Make sure all threats have ‘checkmark’ and click “Next” button.
The Zemana Anti-Malware will remove hijacker infection responsible for OneSearch redirect and move threats to the program’s quarantine. When the cleaning procedure is complete, you may be prompted to reboot your computer to make the change take effect.
Run Hitman Pro to delete OneSearch from the personal computer
HitmanPro is a completely free (30 day trial) utility. You don’t need expensive methods to delete browser hijacker that responsible for web-browser redirect to the annoying OneSearch site and other misleading applications. HitmanPro will uninstall all the unwanted apps like ad-supported software and hijackers for free.
- Hitman Pro can be downloaded from the following link. Save it on your Microsoft Windows desktop.
- Once the download is finished, double click the Hitman Pro icon. Once this utility is opened, click “Next” button for checking your machine for the browser hijacker responsible for redirections to OneSearch. Depending on your personal computer, the scan can take anywhere from a few minutes to close to an hour. While the Hitman Pro is checking, you can see how many objects it has identified either as being malware.
- Once HitmanPro has finished scanning, Hitman Pro will produce a list of undesired applications adware. When you’re ready, press “Next” button. Now click the “Activate free license” button to begin the free 30 days trial to remove all malicious software found.
Run Malwarebytes to remove OneSearch redirect
Remove OneSearch browser hijacker infection manually is difficult and often the hijacker infection is not completely removed. Therefore, we suggest you to use the Malwarebytes Free which are completely clean your personal computer. Moreover, the free application will help you to get rid of malware, PUPs, toolbars and adware that your system can be infected too.
- MalwareBytes can be downloaded from the following link. Save it on your Desktop.
Malwarebytes Anti-malware
326462 downloads
Author: Malwarebytes
Category: Security tools
Update: April 15, 2020
- At the download page, click on the Download button. Your web-browser will display the “Save as” prompt. Please save it onto your Windows desktop.
- When the download is finished, please close all applications and open windows on your PC system. Double-click on the icon that’s called mb3-setup.
- This will start the “Setup wizard” of MalwareBytes Anti Malware (MBAM) onto your system. Follow the prompts and do not make any changes to default settings.
- When the Setup wizard has finished installing, the MalwareBytes Free will run and open the main window.
- Further, press the “Scan Now” button . MalwareBytes AntiMalware application will scan through the whole personal computer for the browser hijacker responsible for redirecting user searches to OneSearch. While the MalwareBytes Anti Malware (MBAM) utility is scanning, you may see how many objects it has identified as being affected by malicious software.
- Once MalwareBytes Free has completed scanning your computer, MalwareBytes Anti-Malware (MBAM) will show a list of detected threats.
- In order to get rid of all threats, simply click the “Quarantine Selected” button. After the task is done, you may be prompted to restart the personal computer.
- Close the Anti Malware and continue with the next step.
Video instruction, which reveals in detail the steps above.
Use AdBlocker to block OneSearch and stay safe online
Use an ad blocker tool like AdGuard will protect you from malicious advertisements and content. Moreover, you can find that the AdGuard have an option to protect your privacy and block phishing and spam websites. Additionally, ad blocker applications will help you to avoid unwanted popup ads and unverified links that also a good way to stay safe online.
- Installing the AdGuard is simple. First you will need to download AdGuard by clicking on the following link. Save it on your Desktop.
Adguard download
26659 downloads
Version: 6.4
Author: © Adguard
Category: Security tools
Update: November 15, 2018
- After downloading it, start the downloaded file. You will see the “Setup Wizard” program window. Follow the prompts.
- After the setup is complete, click “Skip” to close the setup application and use the default settings, or press “Get Started” to see an quick tutorial that will help you get to know AdGuard better.
- In most cases, the default settings are enough and you don’t need to change anything. Each time, when you run your system, AdGuard will start automatically and block pop-ups, web-pages like OneSearch, as well as other malicious or misleading webpages. For an overview of all the features of the program, or to change its settings you can simply double-click on the icon called AdGuard, that is located on your desktop.
Why has my start page and search provider changed to OneSearch?
In most cases, the OneSearch browser hijacker infection spreads along with the setup files from a free hosting and file sharing web sites. So, install a freeware is a a good chance that you will find a bundled hijacker. If you don’t know how to avoid it, then use a simple trick. During the installation, select the Custom or Advanced setup mode. Next, click ‘Decline’ button and clear all checkboxes on offers that ask you to install third-party programs. Moreover, please carefully read Term of use and User agreement before installing any software or otherwise you can end up with another unwanted program on your computer like this hijacker infection.
To sum up
Now your computer should be free of the hijacker that created to redirect your internet browser to the OneSearch web-site. We suggest that you keep Zemana Anti Malware (to periodically scan your computer for new browser hijacker infections and other malicious software) and AdGuard (to help you block intrusive pop up advertisements and harmful web-pages). Moreover, to prevent any browser hijacker infection, please stay clear of unknown and third party programs, make sure that your antivirus program, turn on the option to detect potentially unwanted software.
If you need more help with OneSearch related issues, go to here.
