I recently acquired some Intel Computesticks (m3 1.6ghz, 4GB, 64gb storage, abgn) and was going to use them as digital signage systems – total side note but they work remarkably well for digital signage, especially with Xibo).

I needed them to automatically log into windows with no user interactions when rebooting.

Run Netplwiz
Windows + R
Netplwiz

Uncheck the Users must enter a user name and password to use this computer
Enter the password for an automatic user login. I used a local account.

You can also use the registry to do it:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
DefaultUserName enter a value of domain\youraccount, or MicrosoftAccount\yourMSemail@domain.tld, or username
New String Value for DefaultPassword (if it doesn’t exist)
Enter your password (yes, clear text)
Change the value for AutoAdminLogon to 1

**EDIT**
apparently there’s an Autologon by sysinternals too. For win10.