Remove Contenko (Free Guide) - updated Oct 2019

Get rid of Contenko from Windows systems

Clean the system from any  Contenko traces left behind

1. Click Start → Control Panel → Programs and Features (if you are Windows XP user, click on Add/Remove Programs).
2. If you are Windows 10 / Windows 8 user, then right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel and Uninstall a Program.
3. Uninstall Contenko and related programs
   Here, look for Contenko or any other recently installed suspicious programs.
4. Uninstall them and click OK to save these changes.
5. Remove Contenko from Windows shortcuts
   Right click on the shortcut of Mozilla Firefox and select Properties.
6. Go to Shortcut tab and look at the Target field. Delete malicious URL that is related to your virus.

Repeat steps that are given above with all browsers' shortcuts, including Internet Explorer and Google Chrome. Make sure you check all locations of these shortcuts, including Desktop, Start Menu and taskbar.

Eliminate Contenko from Mac OS X system

1. If you are using OS X, click Go button at the top left of the screen and select Applications.
2. Wait until you see Applications folder and look for Contenko or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash.

Remove Contenko from Internet Explorer (IE)

1. Remove dangerous add-ons
   Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons.
2. You will see a Manage Add-ons window. Here, look for Contenko and other suspicious plugins. Disable these entries by clicking Disable:
3. Change your homepage if it was altered by virus:
   Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes.
5. Reset Internet Explorer
   Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
6. Here, select Reset.
7. When in the new window, check Delete personal settings and select Reset again to complete Contenko removal.

Uninstall Contenko from Microsoft Edge

Reset Microsoft Edge settings (Method 1):

1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
2. Click Settings to open more options.
3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option.
4. Here, select all what you want to remove and click Clear.
5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager.
6. When in Processes tab, search for Microsoft Edge.
7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps.
8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries.

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

1. Note: you need to backup your data before using this method.
2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
3. Select every entry which is saved on it and right click with your mouse. Then Delete option.
4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
5. Right-click the Windows PowerShell entry and choose Run as administrator.
6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
   

   Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}

   

Once these steps are finished, Contenko should be removed from your Microsoft Edge browser.

Erase Contenko from Mozilla Firefox (FF)

When Contenko installs other programs or in-browser applications, you need to eliminate all of them to get rid of the PUP entirely

1. Remove dangerous extensions
   Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons → Extensions.
2. Here, select Contenko and other questionable plugins. Click Remove to delete these entries.
3. Change your homepage if it was altered by virus:
   Click on the menu (top right corner), choose Options → General.
4. Here, delete malicious URL and enter preferable website or click Restore to default.
5. Click OK to save these changes.
6. Reset Mozilla Firefox
   Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information.
7. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete Contenko removal.

Delete Contenko from Google Chrome

You should reset the browser fully to default, so all the changes get to be reversed

1. Delete malicious plugins
   Open Google Chrome, click on the menu icon (top right corner) and select Tools → Extensions.
2. Here, select Contenko and other malicious plugins and select trash icon to delete these entries.
3. Change your homepage and default search engine if it was altered by your virus
   Click on menu icon and choose Settings.
4. Here, look for the Open a specific page or set of pages under On startup option and click on Set pages.
5. Now you should see another window. Here, delete malicious search sites and enter the one that you want to use as your homepage.
6. Click on menu icon again and choose Settings → Manage Search engines under the Search section.
7. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name.
8. Reset Google Chrome
   Click on menu icon on the top right of your Google Chrome and select Settings.
9. Scroll down to the end of the page and click on Reset browser settings.
10. Click Reset to confirm this action and complete Contenko removal.

Get rid of Contenko from Safari

1. Remove dangerous extensions
   Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences.
2. Here, select Extensions and look for Contenko or other suspicious entries. Click on the Uninstall button to get rid each of them.
3. Change your homepage if it was altered by virus:
   Open your Safari web browser and click on Safari in menu section. Here, select Preferences as it was displayed previously and select General.
4. Here, look at the Homepage field. If it was altered by Contenko, remove unwanted link and enter the one that you want to use for your searches. Remember to include the "http://" before typing in the address of the page.
5. Reset Safari
   Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari....
6. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete Contenko removal process.