Normal- starts Windows
Logged - same as normal except it logs the startup and load activities
Safe Mode - used to troubleshoot problems with Windows
Safe Mode with network support - same as safe mode but allows network access incase you need to download something from the network (NOT available for Windows 98/ME because they automatically include network support)
Step-by-Step confirmation - asks for confirmation before executing each command in the io.sys, config.sys, and autoexec.bat
Command prompt only - Windows 95/98 doesn't start, instead a command prompt starts ( NOT available with Windows ME)
Safe mode with command prompt - doesn't execute commands in autoexec.bat or config.sys, instead you only see the DOS prompt (NOT available with Windows ME)
Previous version of MS-DOS - loads a previous version of DOS if available (NOT available for Windows ME or Windows 98 SE)