IE10, MyYahoo and CCleaner

For the past month or two, everyday when I switch over to the (older) MyYahoo in IE10 I have to log in, even though I check the "keep me logged in" box every time. Since this is not happening with Opera 12 or FF24, I've wondered if it's a CCleaner setting (or a Yahoo bug). Anyone else running into this? Thanks,

OS & CCleaner versions? Do you use Winapp2.ini-file?

Which options you have ticked under IE in CCleaner? How about Opera and FF?