This has happened before and I've tried every possible suggestion on this site and nothing works, except going back to the original password I set up my ISP's email account with. Unfortunately someone was hacking my account and my ISP told me to change my password, which I did. Now the same problem raises it's ugly head, every time I open Live Mail, I get a popup asking for my password, doesn't matter how many times I check the remember password box. This is obviously a problem with Windows 10, because it never happened with 7.Even though I've received many Win10 updates over the past year, why wasn't there one to address this problem included????? THIS REALLY PISSES ME OFF MICROSOFT.......................FIX IT!!!!