CD Drive — The computer attempts to boot from the CD drive. If no CD is in the drive, or if the CD has no operatingsystem, the computer generates an error message.USB Flash Device — Insert the memory device into a USB port and restart the computer. When F12 = Boot Menuappears in the upper-right corner of the screen, press . The BIOS detects the device and adds the USB flashoption to the boot menu.NOTE: To boot to a USB device, the device must be bootable. To make sure that your device is bootable, check thedevice documentation.Changing Boot Sequence for the Current BootYou can use this feature, for example, to tell the computer to boot from the CD drive so that you can run the Dell Diagnosticson the Dell Drivers and Utilities disc, but you want the computer to boot from the hard drive when the diagnostic tests arecomplete. You can also use this feature to restart your computer to a USB device such as a floppy drive, memory key, or CD-RW drive.1. If you are booting to a USB device, connect the USB device to a USB connector.2. Turn on (or restart) your computer.3. When F2 = Setup, F12 = Boot Menu appears in the upper-right corner of the screen, press .If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft Windowsdesktop. Then shut down your computer and try again.The Boot Device Menu appears, listing all available boot devices. Each device has a number next to it.4. At the bottom of the menu, enter the number of the device that is to be used for the current boot only.For example, if you are booting to a USB memory key, highlight USB Flash Device and press .NOTE: To boot to a USB device, the device must be bootable. To make sure your device is bootable, check the devicedocumentation.Changing Boot Sequence for Future Boots1. Enter the system setup program (see Entering the System Setup Program).2. Use the arrow keys to highlight the Boot Sequence menu option and press to access the menu.NOTE: Write down your current boot sequence in case you want to restore it.3. Press the up- and down-arrow keys to move through the list of devices.4. Press the spacebar to enable or disable a device (enabled devices have a checkmark).5. Press plus (+) or minus (–) to move a selected device up or down the list.Clearing Forgotten PasswordsCAUTION: Before working inside your computer, read the safety information that shipped with yourcomputer. For additional safety best practices information, see the Regulatory Compliance Homepage atwww.dell.com/regulatory_compliance
