Main menu:
If you want to change your system boot preferences you have to edit the boot.ini file with Notepad. The file is in your hard drive's root folder (it is hidden).
But MSConfig gives you a better way to edit it. Select the BOOT.INI Tab and a rich and intuitive interface is revealed to you.
If you have multiple operating systems installed you can change the boot screen interval by entering a lower or higher value in the Timeout edit box.
You can check out the /SAFEBOOT option and the next time Windows is restarted it will start up in Safe Mode.