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External Hard-drive not show

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by hungho_2000

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Error Message at Event Properties:
The driver detected a controller error on \Device\Harddisk1\DR12.
When I hook up external hard-disk using USB port there is no drive show at my computer. Last time a friend of mine accidently delete the Master Boot of the drive during formating. Would you show me how to fix it.

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by dmead74

It doesn't look like the MBR is at fault (I have no idea how you can delete it during a format anyway, but that's another matter). You've got either a software problem with the driver, or a hardware problem with the drive or the USB ports. I assume you've tried different USB ports? If not do that first. If that doesn't help, try getting the latest drivers for the device and install them. It may help to completely remove the old drivers first. If it's still not working the next thing would be to try the drive on another computer. If you get it working and it's a FAT partition, you can rewrite the MBR using fdisk with 'fdisk /mbr'

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