John,
A footnote: Because Winchesters can be partitioned into more than one
"virtual" drives, pressing W ordinarily gives you a second menu asking
which virtual drive to boot from, as in E, F or G. The utility that you
used to partition the disk should have an option to let you select an
autoboot drive. This will let you, say, select E as the partition to boot
from, avoiding the second menu.
— Carl