I have been using Mozilla Thunderbird for a number of years to manage our various email accounts including a Hotmail account. This week the Hotmail account ceased working. The password was not recognised for some unknown reason.
The Outlook app also would not recognise the Hotmail account password when I tried to set that up as an alternative to Thunderbird.
However when I accessed Outlook via the web, the Hotmail password was accepted.


Also I tested Outlook on another PC in our home running Windows 10. I ended up setting up a new .outlook.com email account. The strange thing is the PC now asks for this email account password as the PC login. Also can't access the new Outlook email anywhere else but on the PC I set it up on. I am completely confused. Has anybody any clue where I have gone wrong with all this.