Auto login Windows 8.1 Domain account

Have you recently signed into Windows 8 with a Microsoft account? Is the check box missing on your netplwiz to allow auto-login:

If you try setting auto login from the registry, The ‘AutoAdminLogon’ key always reverts back to 0 and resume from sleep will not work.

Thankfully this is a simple fix, open up Control Panel, User accounts and click “Reset Security Policies” on the left, afterwards run ‘control userpasswords2’ or ‘netplwiz’ and you will see the check-box to automatically login is back.