How To Prevent Log-In Box From Appearing During Startup
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1. Click Start - Run, type in REGEDIT, then click OK. This will open the registry editor.
2. Click the + in HKEY_LOCAL_MACHINE - Software - Microsoft - Windows - CurrentVersion - Network.
3. In the Network sub-menu, click directly on Real Mode Net to expose its entries in the right pane.
4. If you see AutoLogon listed, right-click it, then click Modify.
5. Change the value from whatever it is to 00 00 00 00 (all zeros), then click OK.
6. If AutoLogon is not present, right-click an empty space in the right pane, then click New - Binary Value.
7. Type in AutoLogon (exactly as you see it here), then press the Enter key to lock in the name.
8. Do steps #4 and #5.
9. Close the registry editor, then reboot.
The password log-in box should no longer appear.