remove shutdown button from the logon screen

If you want you can remove shutdown button from logon screen, you can do this in 2 way, use a more easy way to you, follow these steps.

From registry

• Open registry editor
• Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system
• In the right side open "shutdownwithoutlogon" key
• Edit "value data" to 0
• That it, you are done

Or you can edit "Local security policy"

• Start > run
• Type secpol.msc and press enter to open Local security policy
• Expand Local Policies, and then click Security Options
• In the right side double click "Shutdown: Allow system to be shut down without having to log on" policy
• In local security settings tab select disable and click apply and ok.