Hello, I'm an expert in data storage and management. I can help you with a variety of issues related to external hard drives, including resetting them. Here's a comprehensive guide on how to reset an external hard drive:

Step 1: Preparation
Before you begin, make sure you have the necessary tools and information:
- A Windows computer (for this example, we'll use Windows 7/Vista/XP)
- Your external hard drive
- A USB cable to connect the hard drive to your computer
- Knowledge of your computer's BIOS setup menu (this is usually accessed during startup)

Step 2: Connect the Drive
Connect your external hard drive to your computer using an available USB port. Make sure the connection is secure.

Step 3: Restart the Computer
Restart your computer to access the BIOS setup menu. This is typically done by clicking on the "Start" menu, then clicking on the arrow next to "Shut down." From there, select "Restart."

Step 4: Access the BIOS Setup Menu
As your computer restarts, you'll need to press a specific key to access the BIOS setup menu. This key varies depending on your computer's manufacturer, but it's often the "Del" key, "F2," or "F10." Check your computer's manual or manufacturer's website for the exact key if you're unsure.

Step 5: Navigate the BIOS Menu
Once you're in the BIOS setup menu, you'll need to navigate to the section that allows you to change the boot order. This is typically under a tab labeled "Boot," "Advanced," or "System Configuration."

Step 6: Change the Boot Order
Change the boot order so that your external hard drive is the first device the computer boots from. This will allow you to reset the drive from the BIOS.

Step 7: Save and Exit
After setting the boot order, save your changes and exit the BIOS setup menu. Your computer will restart and attempt to boot from the external hard drive.

Step 8: Reset the Drive
If your computer successfully boots from the external hard drive, you should see a screen prompting you to reset the drive. Follow the on-screen instructions to complete the reset process.

Step 9: Reformat (Optional)
After resetting, you may need to reformat the drive to make it usable again. This can be done through the Disk Management tool in Windows.

Step 10: Check for Errors
Once the drive has been reset and reformatted, it's a good idea to check for any errors that may have occurred during the process. You can do this by running a disk check utility.

Step 11: Restore Data (If Necessary)
If you had important data on the drive that was lost during the reset, you may need to restore it from a backup.

Step 12: Safe Removal
Finally, when you're done with the reset process and have confirmed that the drive is working correctly, safely remove the external hard drive from your computer.

Remember, resetting an external hard drive will erase all data on it, so make sure you have a backup before you begin. Also, be cautious when changing BIOS settings, as incorrect settings can cause your computer to malfunction.

Now, let's proceed to the translation.

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Method 2 Windows 7 / Vista / XPPower on your Windows computer.Connect your external hard drive to the computer using an open USB port.Click on --Start,-- then click on the arrow next to --Shut down.--Select --Restart.-- ... Press the appropriate key to access your computer's BIOS Setup menu.More items...read more >>