Dell DIMENSION E510 DCSM Owner's Manual page 116

2 Turn on (or restart) your computer.
3 When F2 = Setup, F12 = Boot Menu appears in the upper-right corner of the screen, press
<F12>.
If you wait too long and the operating system logo appears, continue to wait until you see the
Microsoft Windows desktop. Then shut down your computer (see "Turning Off Your Computer" on
page 59) 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
<Enter>.
NOTE:
To boot to a USB device, the device must be bootable. To make sure your device is bootable, check the
device documentation.
Changing Boot Sequence for Future Boots
1 Enter system setup (see "Entering System Setup" on page 109).
2 Use the arrow keys to highlight the Boot Sequence menu option and press <Enter> 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.
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