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Accessing and Assessing a Hard Drive’s S.M.A.R.T.

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If there is physical damage, then consider sending the drive to a professional recovery service since physical damage often continues to degrade the data and simply powering on the drive may make data become irretrievable. They are very different than normal drives and can erase important data on a RAW partition just by connecting power to them.īEFORE PROCEEDING YOU MUST TRY TO DETERMINE IF THERE IS PHYSICAL DAMAGE This repair does not apply to solid-state drives (SSD). Any other writing can overwrite data on the drive that you would want to keep.ģ.

You DO NOT WANT TO WRITE ANYTHING TO THE RAW DRIVE except for the repaired MBR and repaired Boot Sector if necessary. Make sure that you stop and think things through carefully when the process becomes different than I describe.Ģ. You may very well come up with a different situation than I outline below. If you wish to continue on your own there are three important rules to remember.ġ. That means that there is definitely physical damage and it should be sent to a facility with the proper tools and environment to repair/recover it since trying to repair it as described in this post can make that situation worse. The drive should not be making strange clicking or beeping noises. To minimize the risks, the drive can be taken to a professional who is experienced in this type of repair. If the problem with the drive is not simply a logical error but is a manifestation of physical damage then the more you use it and try to repair, the worse the damage may become. This is a real repair not a manufactured example.īefore proceeding beyond this point, you need to be aware of the risks involved. Some images are from a virtual machine (simply to make it easier to get the screenshots) and some are from an actual desktop. The pictures of the repair process below are from the actual repair of this drive. The pictures of error messages above all came from this drive. The partition table is corrupted and the boot sector of the main partition is also scrambled. How do you fix itįor this example, I chose the most heavily damaged disk with this issue that I could find in my collection of damaged disks. Left click the icon on the taskbar, select the device from the menu, and wait for the confirmation message.

This can happen in many ways such as a power failure, unplugging the drive from the USB port or from its AC adapter, a problem with the computer that causes it to temporarily disconnect the USB hubs and many more circumstances can lead to this occurring.Īlways use “Safely remove hardware” to disconnect the drive. The most common cause of external hard drives suddenly becoming RAW drives is if they are disconnected from a computer without using the “Safely Remove Hardware” option.

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Since Windows sees no filesystem in the partition, it prompts you to format it in order to create a filesystem on it. This often happens when the records determining the filesystem type or location on the disk are damaged or corrupted, usually the partition table or the boot sector.

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Therefore all the available filesystem drivers are unable to mount the filesystem as a drive.

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Properties of the drive show that both used and free spaces are 0 byte in size for the raw driveĪ RAW filesystem simply means that it is a filesystem that is not recognized by Windows. Here we will look at the causes, fixes and preventative measures for instances involving external drives being used with Windows XP and Windows Vista/7/8.Ĭommon error messages associated with the sudden inability to access an external hard disk drive. When approached sensibly and carefully, the situation can be resolved and the data saved more times than not. It can be a breathtaking experience to suddenly be told that your data, often irreplaceable pictures and documents, might be gone forever.Īs with many similar situations in life the appropriate response is “Don’t panic”. So with all of that in mind, here is a revised version that hopefully addresses some of the shortomings of the post that was originally released in January of 2013.Ī common and befuddling problem with computers is the sudden and seemingly inexplicable disappearance of an external hard drive that has been functioning properly.