The fact that you have uninstalled CCleaner (which is a superb utility, by the way) isn't going to do anything to affect your Yahoo sign-in, because the cookie that was set on your computer by Yahoo has been deleted.

The cookie has an expire time of three weeks, which is why you have to to a manual sign-in every so often - each time you do it the Yahoo site sets a new cookie on your computer, and that signs you in until it expires....and so on, and so on.

To restore your automatic sign in you need to go to the Yahoo site and sign in manually. That will set a new cookie, and you'll be back to normal. The site must offer you an option to set the cookie, often by offering you a 'remember me on this computer' option, so make sure you have that ticked, or that you select 'yes', or whatever the site requires you to do.

Hello

Which internet Explorer & windows please.

Try this, go In IExplorer at the top click on Tools. Then select from the menu Internet Options. Then click on the Tab called Content. Half way down click on Auto Complete and then Settings. Then Tick the Box if not ticked already called Forms. Then run the "delete Auto Complete History. once finished then if the option is available click Apply, then Ok. Close Internet Explorer re open go back to auto complete settings and make sure the Forms in Auto complete is Unticked!

Now close internet explorer and try login to yahoo. Do not go back to re log in. Once in close internet explorer or bt yahoo browser window and you should not have to log in.

If this fails then open internet Explorer go in to internet Options again and click on Advanced Tab. Then select Restore advanced settings and or optional Reset internet Explorer settings. This will clean and reset you internet browser. You will/may have to manually customise you browswer to suit you needs.

Steven

CCleaner will not do anything to alter your browser settings - it simply cleans the cookie cache, so none of the cookies set on your computer will be there when you next visit any sites where you had selected the 'remember me' option.