Dell Studio Desktop D540 (Late 2008) - Manual (Page 39)

37
System Recovery Options
Restart the computer. 4.
When the DELL logo appears, press <F12> 5.
immediately.
NOTE: 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
and try again.
NOTE: The next steps change 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.
When the boot device list appears, highlight 6.
CD/DVD/CD-RW Drive and press <Enter>.
Press any key to
7. Boot from CD-ROM.
Follow the instructions on the screen to
complete the installation.