msn bing home pageAny one know why, when I turned on my puter today,I have MSN bing for a home page.Iuse yahoomail classic?

How do I get rid of the bing window internet home page & go back tomy yahoo mail classic home page?
Some web page or prmsn bing home pageogram you installed has changed your homepage. In your Internet Explorer, click the Tools menu then go to Internet Optionmsn bing home pages. On the General tab you can set your home page
THANKS JOHN,
double22