External hard drive not being recognized

Discussion in 'Windows 8 Help and Support' started by Prestigebumps1, Jul 26, 2014.

  1. Prestigebumps1

    Prestigebumps1 New Member

    Joined:
    Feb 13, 2014
    Messages:
    16
    Likes Received:
    0
    So I bought an external hard drive because you never know when your computer may need to reset. So I plugged it in and it did not come up. I went into disk management and I dont know what to do from there on out.. I posted an attachment so you can see.
     

    Attached Files:

  2. davehc

    davehc Microsoft MVP
    Premium Supporter Microsoft MVP

    Joined:
    May 1, 2008
    Messages:
    5,116
    Likes Received:
    301
    Right click it. select "change drive letter and paths". Add and, if it suits, accept the default letter.

    Depending on the HD, you may have to do this whenever you boot.
     
  3. Joe S

    Joe S Excellent Member

    Joined:
    Jan 12, 2009
    Messages:
    3,785
    Likes Received:
    113
    Just t be clear this is not disk 1 I assume. First make sure you are not using a cable longer than the one supplied or connecting through a hub. If it is a powered drive try plugging directly into the wall instead of the surge protector. If this is a desktop try a USB port on the back, sometimes that makes a difference. Make sure the USB drivers are all up to date. If it is disk 1 try assigning a letter to it.
    Joe
     
  4. Prestigebumps1

    Prestigebumps1 New Member

    Joined:
    Feb 13, 2014
    Messages:
    16
    Likes Received:
    0
    I tried but for some reason it is blacked out, it wont let me click it.
     
  5. Saltgrass

    Saltgrass Excellent Member
    Microsoft Community Contributor

    Joined:
    Oct 16, 2009
    Messages:
    15,157
    Likes Received:
    393
    Drive 0 appears to be the Lenovo system with its normal partitions.

    Drive 1 seems to have an EFI System partition and is set as GPT. Do you know what is on Drive 1 and why it has a EFI partition? Which System partition are you booting to? To find out, Open and Administrative Command prompt and type bcdedit then copy and paste the results.
     
  6. Prestigebumps1

    Prestigebumps1 New Member

    Joined:
    Feb 13, 2014
    Messages:
    16
    Likes Received:
    0
    @Saltgrass "The boot configuration data store could not be opened, access is denied" thats what I got
     
  7. Saltgrass

    Saltgrass Excellent Member
    Microsoft Community Contributor

    Joined:
    Oct 16, 2009
    Messages:
    15,157
    Likes Received:
    393
    Is Drive 1 the external drive and you can boot normally without it?

    I think you need to use Diskpart to clean that drive and get whatever those remnants, wherever they came from, off that drive. You just need to make sure you are not booting to it.

    Possibly what is going on with Bcdedit is the two EFI partitions are confusing it, but not sure. You will get that message if you are not using the Administrative version of the Command Prompt window. It should show Administrative at the top.

    If you have data on it you need to move and you can't access it, we may see if we can just remove the EFI partition, which diskpart can do, probably with the override switch. But let us know what you think.
     
  8. Prestigebumps1

    Prestigebumps1 New Member

    Joined:
    Feb 13, 2014
    Messages:
    16
    Likes Received:
    0
    Yeah Disk1 is it. I unplugged and put it back in at it was disk1. It still wont let me change anything. @Saltgrass
     
  9. Saltgrass

    Saltgrass Excellent Member
    Microsoft Community Contributor

    Joined:
    Oct 16, 2009
    Messages:
    15,157
    Likes Received:
    393
    If you don't have data on it or something you really need to keep, open the Admin command prompt again and use diskpart to clean the drive.

    The following are the commands you would use, with an Enter after each line. Just make very sure you are looking at the correct drive before you clean it. One way to make sure is to list the partitions and see if they agree with what you see in disk management.

    Diskpart
    list disk


    The one you want should be Disk 1, but make sure.

    list partition

    If the partitions agree with the drive you want,

    clean

    If you want it converted to GPT,

    convert gpt

    exit
    You should now be able to format the drive as necessary. If you convert the Drive to GPT from within Windows, it will put the 128 MB MSR partition at a 17K offset. If you want to install something on the drive, you may need to clean it again, or use Diskpart to remove that partition or during the actual Install process.
     
  10. Prestigebumps1

    Prestigebumps1 New Member

    Joined:
    Feb 13, 2014
    Messages:
    16
    Likes Received:
    0
    I got it
     
    #10 Prestigebumps1, Jul 26, 2014
    Last edited: Jul 27, 2014
  11. Prestigebumps1

    Prestigebumps1 New Member

    Joined:
    Feb 13, 2014
    Messages:
    16
    Likes Received:
    0
    so I did that, but the disk1 is not coming up. It has 933 GB of storage and it wont show up in cmd.
     
    #11 Prestigebumps1, Jul 26, 2014
    Last edited: Jul 27, 2014
  12. Saltgrass

    Saltgrass Excellent Member
    Microsoft Community Contributor

    Joined:
    Oct 16, 2009
    Messages:
    15,157
    Likes Received:
    393
    If you got the drive cleaned, in Disk Management, you will have to initialize the drive by clicking on the left end and selecting initialize. After the drive is initialized you can format it and add a drive letter.

    I have done the clean option on a drive to show you how it goes.
     

    Attached Files:

    Prestigebumps1 likes this.
  13. Prestigebumps1

    Prestigebumps1 New Member

    Joined:
    Feb 13, 2014
    Messages:
    16
    Likes Received:
    0
    it says un allocated what do I do from there
     
  14. Prestigebumps1

    Prestigebumps1 New Member

    Joined:
    Feb 13, 2014
    Messages:
    16
    Likes Received:
    0
    Okay now I got it. My computer is now backed up :D
     

Share This Page

Loading...