I am using Windows Live Mail and one of my email addresses (@msn.com) will not connect and shows a box saying:-

" Unable to send or receive messages for the Peter's MSN account. An incorrect password was entered. The next time you send or receive messages, you'll be asked to enter your username and password for this account.

erver Error: 0x800CCC90

Server Response: -ERR Authentication failure: unknown user name or bad password. [Error="ProxyNotAuthenticated" AuthResult=0 Proxy=HE1PR08MB0507.eurprd08.prod.outlook.com:1995:SSL]

Server: 'pop3.live.com'

Windows Live Mail Error ID: 0x800CCC92

Protocol: POP3

Port: 995

Secure (SSL): Yes "

I am using windows 8.1 and a second email address (@Hotmail.co.uk) still works OK.    Nothing else has changed on my computer.

Any suggestions?