What is PUP.Optional.Winyahoo and How to Remove it?

PUP.Optional.Winyahoo is a Potentially Unwanted Program (PUP). It enters in your PC with other programs installer. That’s why antivirus program categorizes it as an Optional PUP. You get the option to install Winyahoo on your PC during the installation of some other program. Users might deselect it during the installation. However, option to install is preselected and most of the time users consider it as a useful tool. In this article, you will know what is PUP.Optional.Winyahoo, what it does and how to remove it.

What is PUP.Optional.Winyahoo?

PUP.Optional.Winyahoo is a code that antimalware uses to display that there is a PUP infection of Winyahoo. Once Winyahoo is on your computer, you will see the PUP.Optional.Winyahoo code warning during the scan. Winyahoo targets the browsers, it hijacks the settings and records the online activity. Such optional programs are created to spy on people.

How to Remove PUP.Optional.Winyahoo

How Does PUP.Optional.Winyahoo Enter in your PC?

There are several ways PUP.Optional.Winyahoo could spread. However, most easy method for this PUP is to use software bundling method. The makers of this PUP bundles its code with other free or pirated programs. When you download and install that software, you also install the bundled program. Most of the time, it happens without the knowledge of the user. However, sometimes it displays the bundled software in the terms & condition page. If you choose custom/installation method during installation, you could see the bundled software. It is preselected to install on your PC. You can deselect it, however, most of the time users consider it a useful tool and doesn’t deselect.

What does Pup.Optional.Winyahoo do?

PUP.Optional.Winyahoo prime purpose is to collect your personal information while you browse. That’s why when it enters in your PC, it hijacks the settings of the browser by putting itself as a browser add-on/extension. It changes the homepage, new tab, and default search engine of all browsers. Also, it creates an entry in the Windows registry so that you cannot remove it. Every time you search anything on the browser, it records your search query and redirects you to the different search engine. It also records browsing history, IP address, location, hardware, and software information.

The collected information is used to create a profile so that the advertisers can easily serve ads based on your interest. This information is further sold to the third-party clients, who may use it for marketing purposes or other illicit activities. Below are the actions that PUP.Optional.Winyahoo takes after entering your PC.

  • Changes homepage, new tab, and default search engine.
  • Redirects you to the advertising pages.
  • Displays alerted search results with malicious links.
  • Tracks your online activity.

I suggest you remove Winyahoo from your right now before it could damage more.

Threat Summary

Threat Name: PUP.Optional.Winyahoo
Type: Malicious Add-on/Extension
Brief Description: Malicious add-on or extension can perform various unwanted tasks on computer.
Removal Tool: ▼ DOWNLOAD MalwareFox

Procedures to Remove PUP.Optional.Winyahoo

Removal steps on this page will help you get rid of the threat effectively using tools and virus scanners. Please make sure that you will carry out the guide in exact order.

Procedure 1: Uninstall PUP.Optional.Winyahoo from Windows Control Panel

1. Begin the removal process by uninstalling the adware program from Windows. To do this, we need to open Control Panel. Please ensure that you are logon with the Administrative privilege to access this function.

Accessing Control Panel in Windows 8 and Windows 10

- On your keyboard, Press Windows Key + X.
- Once Quick Access Menu appears on the screen, please click on Control Panel.
- Control Panel window will open. Please proceed to the next step which is uninstalling PUP.Optional.Winyahoo.

How to access Control Panel in Windows XP, Windows Vista / 7

- Click on Start button that can be found on bottom left corner of the screen.
- From the list, choose Control Panel to access settings of Windows and make the needed changes.

Cpanel Win7

2. Under Programs, click on Uninstall a program. It will open a program and features window where-in you can uninstall, change, or repair installed software.

3. Look for adware title or any suspicious name that was installed recently. To do this, you need to arrange the items chronologically. Click on 'Installed On' to display the latest program that looks unfamiliar.

Uninstall Item

4. Select adware relevant to PUP.Optional.Winyahoo or any suspicious items. Then, click on Uninstall button to remove it from Windows.

5. If it prompts for confirmation, please click OK button to proceed.

Procedure 2: Scan and remove PUP.Optional.Winyahoo files with MalwareFox Anti-Malware

To remove PUP.Optional.Winyahoo, download MalwareFox Anti-Malware. This tool is effective in getting rid of Trojans, viruses and malware.

Download MalwareFox - Free Malware Removal Tool

1. After downloading, please install the program using the default settings.

2. At the end of the installation, please make sure that it will download necessary updates.

3. Once update has completed, MalwareFox will launch.

MalwareFox Malware Scanner

4. Click on SCAN button to start the detection process.

5. After thorough scanning, infection result will be displayed. Remove all threats detected by this anti-malware program after the process.

MalwareFox Scanning Result

Procedure 3: Scan Computer in Safe Mode Using Installed Anti-virus Program

1. When troubleshooting a PC, one common step is to boot operating system into Safe Mode with Networking. The same approach will be used in the removal of PUP.Optional.Winyahoo. Please execute instructions based on your Windows OS version.

Start Windows 8 / Windows 10 in Safe Mode with Networking

- Close all running programs on your computer because we will need to restart Windows on this procedure.
- Press and Hold Shift key on your keyboard while clicking on Restart.
- You will then be presented with Troubleshooting Options.
- Click on Troubleshoot icon.
- Then, Click on Advanced Options icon.
- Select Startup Settings icon and then, Click on Restart button.
- When Windows restarts, it will prompt to choose number from the list of options. Press the number on your keyboard that corresponds to Safe Mode with Networking, commonly number 5.
- Once in Safe Mode, please proceed to the next step which is running a virus scan on the computer.

Start in Safe Mode with Networking (Windows XP / Vista / 7 Instruction)

- Please restart the computer and just before Windows start, press F8 on your keyboard repeatedly. You will be presented with Advanced Options Menu.
- From the selections, choose Safe Mode with Networking. Please use keyboard's arrow up/down to navigate between selections and press Enter to proceed.


2. Once your Windows is running in Safe Mode, open your installed anti-virus programs and update it to the most recent version by automatically downloading necessary updates.

3. Thoroughly scan the computer and remove all identified threats. Do not restart or turn off the computer after the scan process. You still need to run another scan. Please follow the next procedure.

Procedure 4: Run extra scan with Junkware Removal Tool

To make sure that no more malicious files linked to PUP.Optional.Winyahoo are inside the computer, we must run another effective scanner. This time, use Junkware Removal Tool. No installation is necessary with this tool.

Download JRT

1. Click the button above to start the download process. Save the file to your preferred location.

2. Junkware Removal Tool will close all running applications later. So, before executing the file, please Bookmark or Print this page. And then, close all programs.

3. Double-click the JRT.exe file to initiate the tool.

4. It will prompt you to "Press any key to continue."

JRT Scanner

5. Junkware Removal Tool will create a Restore Point and proceed with the scan. Please wait for the scan process to finish.

6. After scanning the computer, JRT will open a Notepad containing scan logs. It may have not find PUP.Optional.Winyahoo relevant entities, but it will surely delete any malicious items not found in the previous scans.

Procedure 5: Reset Affected Internet Browser

Reset browser settings of Google Chrome:

1. Open Google Chrome browser.

2. In the address bar, type this: chrome://settings/ and then, press Enter.

3. Navigate at the end of the page and click on Show advanced settings.

4. At the bottom of the page, click on Reset settings to remove all changes made by PUP.Optional.Winyahoo.

Reset Google Chrome

Reset Internet Explorer Settings:

1. Open Internet Explorer software.

2. Navigate to top menu and click Tools > Internet Options.

3. On Internet Options window, select Advanced tab.

4. In order to reverse modifications caused by PUP.Optional.Winyahoo, click on Reset button to bring back Internet Explorer's settings to their default condition.

Internet Explorer

Reset Firefox to its default state:

1. Open Mozilla Firefox program.

2. Navigate to top menu and Open Help Menu. Then, select on Troubleshooting Information.

3. Click on Refresh Firefox button to erase the effect of PUP.Optional.Winyahoo.

Reset Firefox

Protect your PC from PUP.Optional.Winyahoo or Similar Attack

Turn On Safe Browsing Features

Google Chrome's Protection from Dangerous Sites

With Google Chrome's Dangerous Site Protection feature, you will have lesser risks browsing the web. It will display a warning when the site you are trying to visit is suspicious, thus, you can prevent PUP.Optional.Winyahoo infection. To enable protection from dangerous sites, please do these steps:

1. Open Google Chrome.

2. In the address bar, type this: chrome://settings/ and then, Press Enter.

3. Once on the settings page, click on Show advanced settings... at the bottom of the page to see the rest of the Chrome setup.

4. Locate Privacy section and mark 'Protect you and your device from dangerous sites'.

Chrome Security Settings

5. Please restart Google Chrome. New settings keep your browser safe while surfing the web.

SEE MORE : Enable Google Chrome's protection from dangerous sites

Internet Explorer - Activate SmartScreen Filter

Internet Explorer versions 8 and 9 has this feature called SmartScreen Filter. It helps detect phishing web sites and protect you from downloading malicious programs including PUP.Optional.Winyahoo. To turn on SmartScreen Filter, follow these steps:

1. Please open Internet Explorer.

2. On top menu, select Tools (IE 9). For IE 8, please look for Safety menu.

3. Select SmartScreen Filter from the drop-down list and click on Turn on SmartScreen Filter.

IE SmartScreen Filter

4. Please restart Internet Explorer.

SEE MORE : Comprehensive steps to activate SmartScreen Filter

Mozilla Firefox - Block Attack Sites and Web Forgeries

Phishing and Malware Protection is a built-in feature on Firefox version 3 or later. It warns you when a page you are trying to visit contains phishing content or an attack site designed to drop threats such as PUP.Optional.Winyahoo. To help you keep safe while browsing the Internet using Firefox, please follow this guide:

1. Open Mozilla Firefox browser.

2. On top menu, click on Open Menu. Then select Options from the list.

3. Select Security and put a check mark on the following items:

  • Warn me when sites try to install add-ons
  • Block reported attack sites
  • Block reported web forgeries

Firefox Security Settings

Edge Browser - SmartScreen Filter

SmartScreen filter is a built-in feature in Microsoft Edge browser that can help you deter malicious programs such as PUP.Optional.Winyahoo. It can block malicious web sites and downloads.

1. Open Microsoft Edge browser.

2. Click on More Actions button located at top right corner of the screen.

3. Select Settings from the drop-down list.

4. Under Settings menu, go to Advanced Settings section and click on View Advanced Settings.

5. Scroll down to "help protect my PC from malicious sites and downloads with SmartScreen Filter". Turn it to ON.

6.You may now restart Microsoft Edge browser.

Edge SmartScreen Filter

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