I have Windows 10. I've had trouble with Windows Live Mail duplicating emails in the Inbox, and "not responding" a lot.  When I tried to troubleshoot the problem with my Dell, the computer indicated that my Verizon account had problems. Following the computer's prompts, I think I deleted the Verizon account by accident. Now, the Windows Live Mail application doesn't seem to be there and I can't access my emails, contacts, etc.  Tried following instructions from the web to fix this, but when I tried to "restore previous versions," computer said there were none.

What to do?