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Rupert, You may need to install the drivers for that hard drive. Since you didn't mention the type of operating system you're trying to install the hard drive on (PC vs. Mac), make sure the external hard drive meets the operating system requirements.
If this is a USB external hard drive, make sure the USB controller is set to "enabled" in the BIOS
If the hard drive requires an external power source, make sure that its plugged in.
Check the "device manager" settings for any conflicts with the USB controller or with the disk drives- make sure the device is working properly and that it is enabled.
You may have an external hard drive you want to use for more than just document backup. In this situation, you can install an operating system onto your external hard drive. By doing so, you will be able to run your external hard drive as a fully functional operating system. If your primary hard drive ever crashes, you will have a backup option unavailable to those who simply use their external hard drives as file and document backup.
1) Plug your external Hard Drive into your Computer using the USB cable. Insert the installation disk for your Operating System into the CD/DVD Drive. Turn on or restart your Computer.
2) Boot from the installation disk. You may have to press a key once prompted to boot from the installation disk.
3) Accept the license terms and conditions. Read through these carefully if you wish to understand your legal rights as a user. If you disagree with these terms and conditions, you may want to purchase a different Operating System.
4) Choose your destination drive. Your external Hard Drive will likely be the E: or F: drive. By default, the C: will represent your main Hard Drive and the D: will usually represent your CD/DVD Drive.
5) Begin the installation. Your external Hard Drive will install the Operating System. You will now be able to run that Operating System off of your external hard drive.
A hard drive is the main component that the computer relies on. On the hard drive, the operating system is stored, also includes your pictures, videos, music, documents, etc. No operating system on... there are other portable hard drives or mass storage devices
2.5 3.5 internal and external hard drives usb external hard drives usb pendrives
usb flash drives ide internal hard drives sata internal hard drives
If you have another Macintosh that is working correctly, you can copy the contents of that hard-drive, including the Operating System onto an external hard drive.
To do this, install Carbon Copy Cloner on the working machine and plug in an external hard-drive. Then run Carbon copy cloner and make the source the computer's hard drive most likely named "Macintosh HD". Then choose to have your external hard drive be the drive where all of the data is copied. Then run the program and let it copy all of the files.
Once this is done, remove the external drive from the computer and plug it into your G3. Turn on your G3 while holding the Option (alt) key and then double click on the hard-drive image that is named whatever your external hard-drive is named.
Once your system boots up from the external hard drive, run Carbon Copy Cloner again and repeat the process again except have the source be your external drive and have the internal drive in your G3 be the disk that has all the data copied to it. Once this is done, turn off your computer, remove the external drive, and then boot up your computer again.
You will have an exact clone of the computer that you copied the data from and will just simply need to adjust the account settings as such as you see fit.
The external drive process can be skipped if you have a firewire cable. Simply connect the firewire cable to both computers and when you turn on your G3, hold the "T" key. This will turn your G3 into an external hard drive and you just have to carbon copy the files straight to your computer's internal hard drive.
If you do not have access to another computer mac computer, then you will need to go to the Apple Store and see if the Genius Bar can install the default operating system that your computer came with.
If for some odd reason you have the contents of an Mac OS install disc copied onto a flash drive or external hard drive, you can boot from that and use it in place of a disc.
First plug your external hard drive "disk" into your computer using your USB cable. Then insert your CD/DVD in your CD/DVD Drive "D, or E, or F" that are define in your system and turn off your computer and On your System "computer". Then boot form the installation disk. Begin the installation so that the hard drive will install the operating system. Then accept the license terms and conditions. Then choose your destination drive."By default, the C: will represent your main hard drive and the D: will usually represent your CD/DVD drive. So your external hard drive will be the E: or F: drive.
"And you will now able to run that operating system." N.B: "You will be able to run your external hard drive as a fully functional operating system. If your primary hard drive ever crashes, you will have a backup option unavailable to those who simply use their external hard drives as file and document backup." All the Best!
Step 1: Analyze the system requirements of the Windows operating system. Windows XP requires 1.5 gigabytes of free hard drive space. Windows Vista requires 20 gigabytes (for the Home Basic edition) or 50 gigabytes (for all other editions). The system requirements for older, outdated versions of the Windows operating system, such as Windows Me and Windows 98, can be found on the official Microsoft Windows Web site (link in the Resources section).
Step 2 :Connect the external hard drive to the computer with which you plan to use the hard drive. Use the hard drive's original cables included by the drive's manufacturer. It does not matter what connectivity standard you use. Windows will automatically detect the external hard drive.
Step 3: Click the Start menu in the lower left-hand corner of the PC screen and select My Computer.
Step 4: Right-click the icon for the external hard drive. Click Format from the pop-up menu. Format the external hard drive in the NTSF format.
Step 5: Insert the original Windows installation disk into your computer's CD-ROM drive. Close the Installation Wizard when it appears on the screen.
Step 6: Return to the My Computer window from Step 3. Write down the drive letters assigned to the CD-ROM drive and the drive of your external hard drive. For the sake of this article, we will use the example of D:\\ being the external hard drive and E:\\ being the CD-ROM drive. These are typically the letters assigned to CD-ROM and external drives in the Windows operating system.
Step 7: Click the Start menu button and select Run.
Step 8: Type "E:\I386\winnt32.exe /syspart:D: /tempdrive:D: /makelocalsource /noreboot" (without quotation marks) and click OK. This launches the Windows installer file on the Windows installation disk in drive E:\\ and commands it to install on the D:\\ drive (your external hard drive). The Windows Installer Wizard screen will appear. (Change the Drive Letter as in your Machine)
Step 9: Select the Full Install option in the Windows Installer Wizard. You will then be guided through the Windows installation disk. Follow the on-screen prompts to complete the installation. Depending on the speed of your computer's processor, this may take several hours. Be prepared to enter important information, such as your Windows registration key to register your copy of the Windows operating system. Do not close the installation window until the installation process is complete.
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Shut down the computer and disconnect the external hard drive. You can now use the external hard drive to boot up another computer using the installed copy of the Windows operating system.
Different operating systems use different file systems. Normally they can't use other ones than their own. To write on NTFS file system (Windows) a Mac needs a special program - get it from here http://www.macupdate.com/info.php/id/26288