Since the latest major Windows 10 update (fall 2015), Internet Explorer (version 11.11) has been refusing to log me into SSL-protected (https:) websites without me having to alter the recorded user name.
Windows changes my user name to MicrosoftAccount\email@example.com, even when the original user ID was a different one. Windows does remember the correct password, so all I have to do is change the user name back to the correct one.
Next time, I log into the site, however, the user name is back to the MicrosoftAccount one.
Any idea how to fix this?
UPDATE: maybe I should mention that I am using the same name to log into Windows and as user name for the SSL session.