Setting Up and Using Your Computer 27
You can enable or disable Hyper-Threading through the system setup program. For more
information on accessing the system setup program, see page 107. For more information on
Hyper-Threading, search the Knowledge Base on the Dell Support website at
support.dell.com.

Booting to a USB Device

NOTE: To boot to a USB device, the device must be bootable. To make sure your device is
bootable, check the device documentation.
To restart your computer to a USB device such as a floppy drive, memory key, or CD-RW
drive:
1Connect the USB device to a USB connector (see page 70).
2Shut down (see page 27) and restart the computer.
3Turn on the computer. When the DELL™ logo appears, press <F12> immediately.
If you wait too long and the Microsoft® Windows® logo appears, continue to wait
until you see the Windows desktop. Then shut down your computer through the Start
menu and try again.
NOTE: This procedure changes the boot sequence for one time only. On the next start-up, the
computer boots according to the devices specified in the system setup program.
4When the boot device list appears, highlight USB Flash Device and press <Enter>.
The computer restarts to the connected USB device.

Turning Off Your Computer

NOTICE: To avoid losing data, turn off your computer by performing a Microsoft® Windows®
operating system shutdown, as described next, rather than by pressing the power button.
1Save and close any open files, exit any open programs, click the Start button, and then
click Turn Off Computer.
2In the Turn off computer window, click Turn off.
The computer turns off after the shutdown process finishes.
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