If the external hard-drive uses a USB (hot plug) connection, then it can be freely plugged in and out without switching off the computer first. The computer will automatically install it in Windows. In some linux type OSs, the drive may need to be mounted first. In any operating systems, it is wise to unmount the drive before pulling the plug to allow any data writing to be completed or you may risk corrupting the external drive/data.
You plug in the hard drive into a computer and install the OS on the portable drive. Doing so may require the OS installer to detect your particular external HDD, which is OS dependent. After the installation, plug portable HDD into another computer and set the computer to boot off external/removable media. The exact procedure depends on the type of BIOS of the other computer and on whether or not its BIOS is password-protected.
The external hard drive's controller may have failed. If the warranty is out or of no concern, and you are technically capable, you might try to open the device and remove the drive. Install the drive in a computer or use an external docking station or adapter, and you may be able to access the drive. If this does not work, many software utilities exist as well as services that will open the drive in a clean room and attempt to recover the data.
Hot Swap
Yes you can remove the hard drive and install it in another computer as a secondary (otherwise know as slave drive) and get the info off of it, but if you don't know what you're doing you should have a professional do it.
There are hard drive interface devices for not much money that will copy the files off of the hard drive--onto another computer. The adapters are called 2.5" External Enclosures, and are readily available.AnswerYou pretty much don't. If you can't log on to the computer, you can't access the files. If it's your computer, you might be able to remove the drive and attach it to another computer and access the files that way.
I do mean an external hard drive.
off
No, you can't install MS office for android tablets. -Dora
have you got the installation disk? if so change your computers bios to boot off the CD drive first and restart your computer with the installation disk in the drive and follow the install settings
If the computer has an expresscard slot, then you can buy a external docking system that plugs into this slot that provides 5 USB 2.0 ports.
There are currently no well-known tablet computers available with an integrated optical drive, though you can connect an external drive to some devices.
If it turns back on, always go to safe mode or boot off a recovery disk for Macintosh computers, copy all important files to an external drive, delete all files on the computer, reboot, add all files on the hard drive to the computer again.