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I do mean an external hard drive.
Your Bios has an option to boot from your DVD Drive or external drive. If the internal or external drive has no boot sector or disc with a boot sector the system will not boot. You will need to go into your bios at boot time most often by tapping your delete key or whatever option your motherboard bios requires and change the option back to boot from your hard drive.
It is likely to depend on the speed of the external hard drive, although most newer external hard drives have a reasonable speed, so it is likely you will be fine wi th using an external hard drive.
Only if you can boot from it. Most new computers can boot from a USB drive, but older ones may not be able to.
You can certainly move Windows to an external hard drive but Windows will not boot directly from an external drive. If you are running Windows in Parallels (See links below) you can have Parallels installed on the Mac's drive and then have your Windows virtual machine on the external drive.
Yes you can, when the computer is booting up open the boot menu and choose the external as your boot device, i have a external hard drive with Ubuntu on it and do exactly that, I'm sure it can work with windows.
Some motherboards support boot from external USB drive amd/or eSATA. You need to check BIOS settings (the external drive should connected) to make sure that your computer is capable to do so. It the motherboard is capable then you can install operating system on the external drive (if it's an usb drive be ready for low performance).
IDE 0 always has the designation C. Its a throwback to the days when computers were single or dual floppy drive only and they had (and still have) designations A and B. Hook up the external drive, go into the BIOS and select the external as the drive to boot from. Save the change and allow the computer to boot. Load the OS and it should defer to the external drive.
I think you would press F2 or some other key to enter the BIOS, Satellite Toshiba press the right arrow during boot up. Normally there is a message on the monitor saying what to do. Once in the BIOS set the boot order to boot from the USB drive, if the OS is on that drive. Some versions of Linux will boot from the CD and do not have to be installed. This is a big help if the hard drive does not work of if you just want to boot from a different OS. Linux and Wndows applications are compatible for all I have seen.
The fastest type of external hard drive would be a external 3.0 USB hard drive.
A CD-ROM drive is not needed to boot the computer. Just put the hard drive first in the boot order in the BIOS.
How do you get a computer to boot up with no hard drive? What are the steps or what is the process of getting a hard drive installed into your computer if it is not bootable because of a missing hard drive.