E-mail problems after downgrading from windows 10 back to windows 7

I hit the wrong button & my computer upgraded to windows 10.  I hated it so went back to windows 7.  I am now unable to delete any e-mails that were in the system at the time of the upgrade.  I am also unable to delete deleted items in mass.  I was able to drag the junk mail over to the deleted folder but can not delete from there unless I go one by one.  I have tried to repair Windows live thru the control panel.  It goes to about 95% & then I get the message I have lost the internet connection.  I have not.  I have tried this about 6 times & get the same message every time.  I am also getting the message "recovering windows live database" every time I go into Windows Live