PUP.Optional.WinYahoo is a potentially unwanted program that could installs in user’s browser as an additional plugin. This nasty adware enters into the user’s PC through many freeware installation process without user’s approval. Once get inside PUP.Optional.WinYahoo alters the content of Web pages and search results, and shows enormous invasive advertisements that could affects your PC performance. Also this nasty threat overrides your PC security system hence you may not able to detect this malicious file. PUP.Optional.WinYahoo corrupts the registry files so badly that system process will be highly damaged and degrade the CPU performance. Hence it is very much essential to delete PUP.Optional.WinYahoo from the compromised PC.
We would recommend to use below tool and run it on your computer to remove PUP.Optional.WinYahoo automatically.