Yahoo mail


New Email
I had recently lost my contact categories. I installed Yahoo mail classic and now have 2 version on Yahoo Mail on my computer. The new version attempts to become the default but when I do that I still do not have contact categories. I went back to an earlier restore point and recovered access to the old Yahoo. To add to my confusion is that I have a short cut to Yahoo mail and it goes to the old version whose content is intact. If I enter the web via Explorer My Yahoo toolbar and choose the mail icon I end up at the new version. How do I remove the new Yahoo Mail Classic