Unlike in Windows NT Server, Windows NT Workstation's
log-in screen has a "Shutdown" button which you can
use to shutdown the system without ever logging in. Here's how to disable Windows NT
Workstation's "Shutdown" button on the initial
log-in screen:
- Run "Registry Editor" (run "RegEdit.exe" or "RegEdt32.exe")
- Select the following key:
HKEY_LOCAL_MACHINE\
SOFTWARE\Microsoft\Windows NT\
Current Version\Winlogon
- Add a value named "ShutdownWithoutLogon" of type
"REG_SZ" and set it to "0".
- Restart Windows
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