In Windows 8, how do you disable the unlock password for Microsoft Accounts?

Solution 1:

To turn on automatic sign in for a local user account or Microsoft account:

  1. press Win+R to open the Run dialog box, then type in netplwiz and press Enter

  2. select the user name of the local user account or Microsoft account that you want to have Windows 8 log on to automatically at startup

  3. uncheck the "Users must enter a username and password to use this computer" box, and click/tap on OK

  4. enter the password of the selected local user account or Microsoft account twice, and click/tap on OK

Solution 2:

If you have a Microsoft account, utilize netplwiz in run, and disable the password, upon reboot your system then gives two options for signing in; a local account and the Microsoft account. The local account will not require a password, but the Microsoft account does require a password.

To answer your question about disabling the password on a machine that is already running and you leave it unattended for some time, follow the directions in this article, which does work. http://www.extremetech.com/computing/142482-how-to-disable-the-windows-8-lock-screen