Windows Live mail login problem can easily fix with the help of enabling the Javascript o the browser. If you don't know how you can enable the javascript, then you can follow these steps below:
1) Open your Chrome browser.
2) Now go to the settings > see all settings
3) Then you can search for the Javascript & enable it.
4) Now, the Windows live mail will work perfectly!!

If this method does not work out to fix the Live com mail login, then you can read more here: https://emailspedia.com/fix-live-mail-login-issues/