To use Registry Editor to turn on automatic logon, follow these steps: Click Start, and then click Run. In the Open box, type Regedit.exe, and then press Enter. Locate the HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionWinlogon subkey in the registry. Double-click the DefaultUserName entry, type your user name, and then click OK.

