The phrase "as a bootable" is not correct in written English.
It seems to be a fragment and lacks context, making it unclear how it should be used.
Example: "You need to format the USB drive as a bootable device to install the operating system."
Alternatives: "as a bootable medium" or "as a bootable drive".
If you're not, you might have to tweak your BIOS settings to allow your c omputer to recognize a thumb drive as a bootable device.
It seems that the SD card slot in the new MacBook Pros does count as a bootable device; all you have to do is install OS X onto a card, set it as the default boot device, and you're good to go.
If you want to use it as a bootable drive, you will need to install a bootable image of an OS (Often Linux) on it.
Select type "USB Drive" and choose the drive you just plugged in Click OK The image will be extracted and Unetbootin will prepare your USB Drive as a bootable device.
Run it as a Live CD, make a bootable USB stick, or install it full-bore.
Instead, use one of the programs that can create a disk image, such as Acronis True Image Home 2012 (which makes a bootable image, offers continuous backup, and can synchronise data on different computers).
The disk must be a bootable CD or DVD, such as your Mac OS X installation DVD.
A similar approach is used with live-CDs that contain a bootable operating system with pre-installed software, such as the free Vigyaan electronic workbench for bioinformatics, computational biology and computational chemistry [15].
These vendor tools usually come in two versions: One that can be installed on Windows as a regular application and a DOS-based version that must be run from a bootable CD or USB stick.
Once you have downloaded the.iso file, you need to burn it to a bootable CD.
With the floppy, make a bootable startup disk that can be used to start the computer before reformatting.
