There are tons of reasons why you would want to boot from the external hard drive, but it’s usually to run a specific software. What is booting from external hard drive? When you boot something from external hard drive, you are running software or operating system that is stored on your external hard drive. When booting, your PC uses the external hard drive as it’s primary hard drive. When you run it normally – as usual, your PC uses it’s internal hard drive as a boot drive to run its operating system like Linux or Windows. We have made a simple guide on how to boot from your external hard drive, just follow steps mentioned below.
How To make external hard drive bootable
Booting from an external hard drive usually takes about 15 minutes. However, it all depends if you have to change something in the way how your computer starts up.
- Change the BIOS boot order. You need to change it so that the external hard drive is listed first. Usually, BIOS is not setup this way by default.If the external hard drive is not listed as the first in boot order, your PC will boot from your hard drive and will not use anything from your external hard drive.
- Plug your external hard drive into your computer through any free USB port.
- Restart your computer.
- Wait for “Press any key to boot from external device” message. With some bootable devices, you may see a message to press a key before the computer will boot from the flash drive.If this does happen, and you do nothing, your computer will look for the next boot device in the list in BIOS and boot from this drive, typically your internal hard drive.
- If you did everything correctly as mentioned above, your computer should now boot from the external hard drive.
What to do if the external hard drive still doesn’t boot?
Try using another USB port
In some motherboards, BIOS checks only specific USB ports. Switch your external hard drive to another USB port, restart your PC and try again.
Remove other USB devices
Sometimes too many USB devices like printers, speakers, cameras, card readers can consume too much power or cause other kinds of problems. Unplug all USB devices you can and try to boot from external hard drive once again.
Check your boot order again
Make sure your external hard drive is listed as the first to boot from it. This is the most common error out there.