The PUP.Optional.Yontoo is a malicious application that is identified as an adware that is discovered recently, and specifically designed to infect the windows platforms. The PUP.Optional.Yontoo infection, invades the computers without providing any information to the users, and soon after settling down, it performs harmful activities. This dangerous adware can modify all the software programs installed on the PC, and modify the complete system settings. Besides that, the PUP.Optional.Yontoo also alters the DNS settings, internet settings, security settings, and windows firewall settings. This adware program cannot be detected or removed through the antivirus software as it immediately disables the antivirus after entering in the computer. This malicious adware is used by the cyber crooks to promote the affiliate and third party products by using unfair advertising tricks. As this adware installed a number of malicious files on the system due to which system resources becomes busy and the speed of the computer decreased.


The Manual Removal of PUP.Optional.Yontoo

After knowing that the system is compromised to the PUP.Optional.Yontoo virus, you need to take preventive measure by removing this virus quickly. The virus can be removed through the automatic removal tools that are not only easy but also quick. The manual removal of this adware infection is also possible yet complicated that is described below:-


Change the Mode of Operation from Normal to Safe Mode

The manual removal process of the PUP.Optional.Yontoo only starts when you boot the system in the safe mode. To access the safe mode, you have to restart the system, and hit the F8 key to access the boot options menu where you can select the Safe mode option. Once the booting options are visible on your screen, select the Safe Mode and hit the Enter key.

End the Malicious Processes

You need to delete the malicious processes associated with the PUP.Optional.Yontoo after accessing the safe mode. Open the windows task manager by pressing the Ctrl+Alt+Delete keys together, and click on the processes tab where you can see the list of processes. Delete the following processes before closing the task manager window:-


Remove the Associated Data

After completing the removal of processes, you have to find as well as remove the following associated files of the PUP.Optional.Yontoo:-

  • %Desktopdir%\PUP.Optional.Yontoo.lnk
  • %Programs%\PUP.Optional.Yontoo\PUP.Optional.Yontoo.lnk

Reverse the Modification in the Windows Registry

In the end, do not forget to clean the windows registry by removing the keys created by the PUP.Optional.Yontoo. Open the registry editor by selecting the Start menu, choose Run option, and type regedit in the box before pressing the OK button. Once the registry editor is accessed on your screen, remove the following corrupt entries associated with this adware infection:-

  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\PUP.Optional.Yontoo\DisplayIcon %AppData%\[RANDOM CHARACTERS]\[RANDOM CHARACTERS].exe,0
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\PUP.Optional.Yontoo
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\PUP.Optional.Yontoo\UninstallString “%AppData%[RANDOM CHARACTERS][RANDOM CHARACTERS].exe” -u
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce\[RANDOM CHARACTERS] %AppData%\[RANDOM CHARACTERS]\[RANDOM CHARACTERS].exe
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\PUP.Optional.Yontoo\ShortcutPath “%AppData%\[RANDOM CHARACTERS]\[RANDOM CHARACTERS].exe” -u
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\PUP.Optional.Yontoo\DisplayName PUP.Optional.Yontoo

Restart the PC in the normal mode after closing the registry editor, to see the result of your efforts. Run a complete system scan after updating your existing antivirus software.

Disclaimer: Altering your windows registry items and other computer files should only be attempted by knowledgeable computer users. Errors in registry items may lead to some technical problems affecting other aspects of your machine. We advise you to attempt all these manual steps at your own risk, or else it is better use the Automatic PUP.Optional.Yontoo removal Tool.


This is most safe and easy method. Download PUP.Optional.Yontoo Removal Tool to automatically remove PUP.Optional.Yontoo.

If you need any technical assistance in removing the PUP.Optional.Yontoo,do submit your comments to get clarified.

How to Remove PUP.Optional.Yontoo?
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