Remove PUP.Optional.Yontoo-Removal Guided for Potentially Unwanted Program

Victim: I run malware bytes and keep getting “PUP.Optional.Yontoo” twice each run and I cannot delete it or find it in a search. I am running a modern HP with Intel Pentum. My defender crashes about 2/3 through probably of those items. Defender quick scan shows no problem. I am 75 yrs old and slow. Can anyone help me delete those threats?

My answer: every anti-malware or anti-virus program has its limitation. Since malware bytes cannot help you remove it from your system, maybe you can choose other suitable anti-malware tool, such as SpyHuter or AVG or Bit Defender, etc. Of course, you can try to remove it manually. If interested in the manual guide, you can refer to our steps.

Know Basic Information of PUP.Optional.Yontoo Before Removing it

PUP.Optional.Yontoo is also known as Yontoo, or PUP Yontoo, or Adware Yontoo. It is actually a potentially unwanted APP, published by Yontoo LLC. According to the feedback of victims, it can attack most of computer systems such as Windows 2000, Windows 7, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, and Windows XP, etc.

Once infecting target computer, it will install a browser extension to keep displaying ads on screen. When it runs on target computer, the following files will be created by it:

%ProgramFiles%\Yontoo Layers Runtime\YontooIEClient.dll

In addition, it is also in a position to generate some malicious registry entries and registry sub keys. The longer it lands on target computer, the more theses vicious items are created. These junks will impact on compromised system operation and cause a poor system performance.

If itching to break away from annoying ads, if desiring for a safe network, if eager to a happy online experience, you had better to remove this PUP in time.

Helpful Methods to Remove PUP.Optional.Yontoo

Method 1. Recommended Video to Remove PUP.Optional.Yontoo

Method 2. Manually Remove PUP.Optional.Yontoo

Step 1: Stop the process from Task Manager.

Click “Ctrl+ Shift + Esc” or right-clicking the taskbar to open Task Manager > Processes > find malicious processes via selecting End process.

Step 2: Remove suspicious programs from Control Panel.

For Windows 7: Start > Control Panel > Uninstall Programs > select PUP.Optional.Yontoo and remove it.

For Windows 8: on Start screen > right-click the app tile > tap or click Uninstall.

Step 3: Remove suspicious extensions from web browsers.

For Internet Explorer

Click Tools and select Manage add-ons >> Disable the items which are related to this browser redirect >> Reset Internet Explorer

For Mozilla Firefox

Click Firefox’s Tools to select Add-ons >>Navigate to Add-ons panel, and remove vicious extensions associated with PUP.Optional.Yontoo.

For Google Chrome

Click the Menu icon of Chrome and select Settings >>Click Extensions on the left panel and remove the extensions related to PUP.Optional.Yontoo.

Step 4: Get rid of all spiteful items from registry.

Open the Run window via hitting Win+R >> Type “regedit” or “regedit.exe” to the search bar >> Click “Ok” to open Registry Editor >> find and delete all baleful entries.

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\YontooIEClient.DLL\”AppID” = “{CFDAFE39-20CE-451D-BD45-A37452F39CF0}”
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\{CFDAFE39-20CE-451D-BD45-A37452F39CF0}\”Default” = “YontooIEClient”
HKEY_LOCAL_MACHINE\SOFTWARE\Tarma Installer\Components\{FC1DD4E4-688F-4E9B-BAE5-BFB6A956AE51}\{DE3B7BF9-0770-4104-BC0B-B1CCCCE2F053}”Default” = “1”
HKEY_LOCAL_MACHINE\SOFTWARE\Tarma Installer\Components\{F5F971A9-DBF8-4EEC-81E3-5F1660573E6C}\{889DF117-14D1-44EE-9F31-C5FB5D47F68B}”Default” = “1”
HKEY_LOCAL_MACHINE\SOFTWARE\Tarma Installer\Components\{B6783DFA-B8C8-4CB6-AB9F-EF1A1F7F7AE8}\{889DF117-14D1-44EE-9F31-C5FB5D47F68B}”Default” = “1”
HKEY_LOCAL_MACHINE\SOFTWARE\Tarma Installer\Components\{A8F0AD53-1AEE-447E-89CD-71C325796F84}\{889DF117-14D1-44EE-9F31-C5FB5D47F68B}”Default” = “1”
HKEY_LOCAL_MACHINE\SOFTWARE\Tarma Installer\Components\{9D9785E5-3424-40B6-A287-BA143AD53109}\{889DF117-14D1-44EE-9F31-C5FB5D47F68B}”Default” = “1”
HKEY_LOCAL_MACHINE\SOFTWARE\Tarma Installer\Components\{9307081B-7444-494C-8CF6-2FA7C0E92BFB}\{889DF117-14D1-44EE-9F31-C5FB5D47F68B}”Default” = “1”

Note: If you dislike spending more time and energy in the manual guide, you can think of install a powerful anti-malware tool-SpyHunter to help you get rid of this threat as well as protect your PC from it and other hidden threats.

Method 2. Powserful Security Tool

SpyHunter is a real-time anti-malware program that is capable of eliminating most of computer infections such as adware, spyware, malware, worms, ransomware, and browser redirect. If eager to it, you can follow the steps below to install it.

(Note: SpyHunter can get along well with your existing security programs without any conflicts.)

Step 1: Download SpyHunter by clicking the button below.

Download SpyHunter

Step 2: Select “Run” to run SpyHunter files.

Step 3: Choose “Malware Scan” and give your PC a comprehensive check.

Step 4: Choose “Fix Threats” to remove all vicious files detected by SpyHunter.

Recommondation: Optimize your computer with RegCure Pro

There are still tremedous registry errors and fragmented/junk files on your system when this threat is eliminated from your computer completely. Therefore, you should optimize compromised system if itching to a good system performance.  Since RegCure Pro is specialized in cleaning up system and boost system performance, it is worthy of being installed.

1: Download RegCure Pro immediately.

2: Click “Run” to install all files of RegCure Pro.

3: Click “System Scan” to scan all errors and junks on your computer.


4: Select all unwanted items and click “Fix All” to clean and fix your system.

Note: The manual guide is a good way to remove PUP and ads. But, if you are not skillful at computer operation with our manual process, you are recommended to install SpyHunter to remove all threats in cause of unnecessary trouble caused by mistakes. If needing to optimize hijacked system, you can give you trust to RegCure Pro.

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>