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WinYahoo. How to remove? (Uninstall guide)

removal by Jake Doevan - - | Type: Adware

WinYahoo is an adware program that might install additional apps without users' permission

WinYahoo virus

WinYahoo is a term used to describe potentially unwanted programs[1] that tend to infiltrate machines with the help of software bundling – an unfair tactic used by freeware and shareware developers to distribute various PUPs. Although it is not a virus, users can notice that their Google Chrome, Internet Explorer, Safari or Mozilla Firefox browsers are injected with multiple advertisements, as well as redirects lead them to suspicious sites on the internet. Those who are in a worry about these issues are not wrong – if adware is installed on the computer, malware infections and leaked personal data is a probability which may become a reality sooner or later. Thus, some users refer to this software as WinYahoo virus.

SUMMARY
Name WinYahoo
Alternative name PUP.Optional.Winyahoo
Type Adware
Symptoms Intrusive advertisement, altered homepage, etc.
Distribution Software bundling, questionable websites, malicious ads, etc.
Danger level Low. Although may result in malware infections and data leak if not handled carefully
Elimination Download and install Reimage for automatic elimination

PUP.Optional.Winyahoo adware modifies specific settings on the system (Windows registry[2]) and browser (sets start and homepage to Yahoo). It also creates a folder in users' Program Files directory and possesses the ability to alter Chrome's secure preferences without permission, as well as avoiding detection by the browser. This behavior is deemed to be malicious by security experts,[3] and the only correct way to deal with these unwanted changes is to remove WinYahoo from your machine.

In addition to settings modification, the PUP can also install additional browser extensions, add-ons, and plugins without permission. For example, Sale Charger is another annoying adware program that injects browsers with fake advertisements or leads users to scam or phishing websites. This way, adware multiplies fast, bloating the system and slowing it down. 

If you are wondering if you are infected with WinYahoo virus, check the pop-ups, deals, banners or offers that pop up out of nowhere. These ads should be marked with the following text:

  • Ads by WinYahoo
  • WinYahoo ads
  • Powered by WinYahoo
  • Waiting for WinYahoo
  • Sponsored by WinYahoo, etc.

The intrusive advertisement is targeting users in the hope of making them buy more products or services from developers' sponsors. Redirects and ads usually generate revenue for each click or visit (pay-per-click scheme) made. It also boosts web traffic of unknown retailers, increasing their chances of making a sale. Nevertheless, the existence of WinYahoo is only beneficial to its developers, as users have to struggle with browser slowdowns, compromised search results, contual redirects and excessive ads.

The main problem of PUP.Optional.Winyahoo virus is that the developers do not check the content they might connect users to. Therefore, the tunnel of pages can lead victims to dangerous sites, including malware-infested, phishing, fake update or other malicious websites. Thus, the infection of ransomware, cryptominer, spyware or a keylogger[4] is just around the corner. 

Dr. Horst Joepen, noted in his article[5] about adware dangers:

Adware is a form of spyware.

Reason being is that adware spies on users who have the software installed. Winyahoo collects data about users' surfing habits, their IP address and similar. In some cases, potentially unwanted programs can also monitor keystrokes, including users' name, credentials, bank account information, home address, etc.

Although PUP.Optional.Winyahoo is not classified as malware, the dangers are still there. Therefore, download anti-malware software (we recommend Reimage) and take care of prompt WinYahoo removal. 

Ways adware can infiltrate your computer

Some potentially unwanted programs can be downloaded directly from official websites or web stores (such as Google Web Store). Nevertheless, that is not the most prominent PUP distribution method. Software bundling is a technique used by freeware and shareware developers often use software bundling to inject users' machines with unwanted apps.

They inject installers or legitimate programs or updates with optional components in the hopes of users skipping steps and picking Recommended or Quick installation mode. Unfortunately, most users do and end up infecting machines with nasty software that would otherwise be not welcomed.

After downloading a free application from the web, make sure you don't rush its installation. Do not click “Next” without looking and always opt for Advanced or Custom installation settings. This allows you to prevent infestation of toolbars, add-ons, media players, system optimizers and other unwanted programs on your computer.

You can get rid of PUP.Optional.Winyahoo virus in just a few minutes

There is no doubt that PUPs should not stay on your system for too long. Fortunately, in most cases, elimination procedure is not that complicated and can be performed by anybody. There are two ways you can complete WinYahoo removal: manual and automatic.

WinYahoo adware

Manual elimination method requires your full attention, as the incorrect process might lead to system damage. We also discourage individuals who are not that familiar with computers and their systems to follow this method. Nevertheless, if you are tech-savvy and know what you are doing, check our illustrated guide below, it will explain how to perform a full elimination of WinYahoo virus, as well as show how to reset each of the browsers manually.

For novice computer users we suggest choosing an automatic approach. Security software can detect and remove PUP.Optional.Winyahoo adware quickly and efficiently. Simply download one of the programs mentioned below and scan your machine by following on-screen instructions.

You can remove virus damage automatically with a help of one of these programs: Reimage, Malwarebytes MalwarebytesCombo Cleaner, Plumbytes Anti-MalwareMalwarebytes Malwarebytes. We recommend these applications because they detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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What to do if failed?
If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
Reimage is recommended to remove virus damage. Free scanner allows you to check whether your PC is infected or not. If you need to remove malware, you have to purchase the licensed version of Reimage malware removal tool.
More information about this program can be found in Reimage review.

If you decided to select another anti-spyware, uninstall Reimage from your computer.
Press mentions on Reimage
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Malwarebytes.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove WinYahoo, follow these steps:

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Erase WinYahoo from Windows systems

To eliminate WinYahoo from Windows, follow these guidelines:

  1. Click Start Control Panel Programs and Features (if you are Windows XP user, click on Add/Remove Programs). 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. 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 WinYahoo and related programs
    Here, look for WinYahoo or any other recently installed suspicious programs.
  4. Uninstall them and click OK to save these changes. Right click on each of suspicious entries and select 'Uninstall'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove WinYahoo 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. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for WinYahoo or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Eliminate WinYahoo 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. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for WinYahoo and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select '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. Delete malicious URL, enter your desired domain name and 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 WinYahoo removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Uninstall WinYahoo from Microsoft Edge

Reset MS Edge in the following way:

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. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and 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. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  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. Find Microsoft Edge entries and select 'End Task'

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. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  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. Find Windows PowerShell, right-click it and select '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}
    Copy and paste a required command and press 'Enter'

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

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Get rid of WinYahoo from Mozilla Firefox (FF)

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select WinYahoo and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete WinYahoo removal. Click on 'Reset Firefox' button for a couple of times
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Delete WinYahoo from Google Chrome

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select WinYahoo and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete WinYahoo removal. Click on 'Reset' button to complete your removal
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Erase WinYahoo 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. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for WinYahoo or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. 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 WinYahoo removal process. Select all options and click on 'Reset' button

About the author

Jake Doevan
Jake Doevan - Computer technology expert

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References

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