carrolky

Q: I see two Windows "drives" when I boot with the Option key

I had to reinstall Windows 10 (with BootCamp).  Now I see two Windows "drives" when I boot with the Option key.

 

How can I remove one?

MacBook Air (13-inch Mid 2012), iOS 8.3, Photos

Posted on Sep 8, 2016 2:49 PM

Close

Q: I see two Windows "drives" when I boot with the Option key

  • All replies
  • Helpful answers

Previous Page 2
  • by Loner T,Helpful

    Loner T Loner T Sep 10, 2016 5:16 AM in response to carrolky
    Level 7 (23,965 points)
    Safari
    Sep 10, 2016 5:16 AM in response to carrolky

    carrolky wrote:

     

    I did not remove the failed installation with Disk utility, (did not know I should have). 

    BC installations should not be removed using Disk Utility.

     

    I thought that I did not have enough space for the windows installation (originally 80GB).  I used Disk utility to try to resize the Windows Partition, but that did not work.  So I used Disk Utility to remove the Windows Partition, then resize the Apple partition to 100%. I then used Bootcamp again to create a the current windows partition and install Windows.

    This will leave remnants of Windows bits, which cannot be cleaned up easily.

  • by carrolky,

    carrolky carrolky Sep 10, 2016 5:17 AM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 10, 2016 5:17 AM in response to Loner T

    So is there a next move?  If I remove the current installation properly, do we expect that to clean this up?  If so, how do I do this "properly"?

  • by Loner T,

    Loner T Loner T Sep 10, 2016 5:17 AM in response to carrolky
    Level 7 (23,965 points)
    Safari
    Sep 10, 2016 5:17 AM in response to carrolky

    carrolky wrote:

     

    To clarify, I don't think I had a "failed installation".  The original was working for a day before the blue screens happened.  I chose to remove the partition and reinstall at that point.

    Usually, such behavior is due to bad GPU drivers on Macs which have Intel GPUs.  Windows Update should be disabled for drivers on such Macs, because it overwrites working BC drivers.

     

    Unfortunately, you may need to backup OS X using Time Machine, erase the internal disk and restore OS X and then re-install Windows. If you have a Fusion drive on your Mini, you may need additional steps.

  • by carrolky,

    carrolky carrolky Sep 10, 2016 5:21 AM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 10, 2016 5:21 AM in response to Loner T

    (I just threw up in my mouth a little). 

     

    What's a fusion drive?  How do I know if I have one?

  • by Loner T,

    Loner T Loner T Sep 10, 2016 5:24 AM in response to carrolky
    Level 7 (23,965 points)
    Safari
    Sep 10, 2016 5:24 AM in response to carrolky

    carrolky wrote:

     

    (I just threw up in my mouth a little).

    Sorry.

     

     

    What's a fusion drive?  How do I know if I have one?

    Post the output of the following OS X Terminal commands

     

    diskutil list

    diskutil cs list

     

    To backup/erase/restore using Time Machine, you can

     

    1. Backup OSX and all your files - Use Time Machine to back up or restore your Mac - Apple Support .

    2. Boot into Internet Recovery (Command+Opt+R) - OS X: About OS X Recovery - Apple Support .

    3. Click on Utilties -> Disk Utility and Erase your internal whole disk.

    4. Restore OSX and your files - Use Time Machine to back up or restore your Mac - Apple Support .

     

    This requires a separate external disk which can accommodate TM backup - Backup disks you can use with Time Machine - Apple Support .

  • by carrolky,

    carrolky carrolky Sep 10, 2016 5:37 AM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 10, 2016 5:37 AM in response to Loner T

    Attached is the output you requested.

     

    I guess I'm concerned about disabling windows Update, given all the security issues Windows has.

  • by carrolky,

    carrolky carrolky Sep 10, 2016 5:38 AM in response to carrolky
    Level 1 (4 points)
    Windows Software
    Sep 10, 2016 5:38 AM in response to carrolky

    /dev/disk0 (internal, physical):   #:                      TYPE NAME                    SIZE      IDENTIFIER   0:      GUID_partition_scheme                        *1.0 TB    disk0   1:                        EFI EFI                    209.7 MB  disk0s1   2:          Apple_CoreStorage Macintosh HD            866.4 GB  disk0s2   3:                Apple_Boot Recovery HD            650.0 MB  disk0s3   4:      Microsoft Basic Data BOOTCAMP                133.0 GB  disk0s4 /dev/disk1 (internal, virtual):   #:                      TYPE NAME                    SIZE      IDENTIFIER   0:                  Apple_HFS Macintosh HD          +866.0 GB  disk1                                 Logical Volume on disk0s2                                 58ABF7B9-B6B4-433A-B6DC-40F092F8B90F                                 Unencrypted CoreStorage logical volume groups (1 found) | +-- Logical Volume Group 4978AF8E-4E70-439E-8193-9F3046567B11     =========================================================     Name:        Macintosh HD     Status:      Online     Size:        866362945536 B (866.4 GB)     Free Space:  10256384 B (10.3 MB)     |     +-< Physical Volume D687C3C7-3EB4-4EAD-8A30-05362781DC6D     |  ----------------------------------------------------     |  Index:    0     |  Disk:    disk0s2     |  Status:  Online     |  Size:    866362945536 B (866.4 GB)     |     +-> Logical Volume Family C107D6CA-1DEA-4C2F-9089-1F91123AB269         ----------------------------------------------------------         Encryption Type:        None         |         +-> Logical Volume 58ABF7B9-B6B4-433A-B6DC-40F092F8B90F             ---------------------------------------------------             Disk:                  disk1             Status:                Online             Size (Total):          866000367616 B (866.0 GB)             Revertible:            Yes (no decryption required)             LV Name:              Macintosh HD             Volume Name:          Macintosh HD             Content Hint:          Apple_HFS

  • by Loner T,

    Loner T Loner T Sep 10, 2016 6:27 AM in response to carrolky
    Level 7 (23,965 points)
    Safari
    Sep 10, 2016 6:27 AM in response to carrolky

    carrolky wrote:

     

    I guess I'm concerned about disabling windows Update, given all the security issues Windows has.

    We need to disable a specific driver update, not all updates. Please see this link as an example. You do not have to disable all updates. I usually remove all driver updates, and allow Security Updates.

     

    The security issues in Windows are a deterrent, albeit OS X has some too.

  • by carrolky,

    carrolky carrolky Sep 10, 2016 6:40 AM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 10, 2016 6:40 AM in response to Loner T

    Does this output help any?

    /dev/disk0 (internal, physical):
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *1.0 TB     disk0
       1:                        EFI EFI                     209.7 MB   disk0s1
       2:          Apple_CoreStorage Macintosh HD            866.4 GB   disk0s2
       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
       4:       Microsoft Basic Data BOOTCAMP                133.0 GB   disk0s4
    /dev/disk1 (internal, virtual):
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                  Apple_HFS Macintosh HD           +866.0 GB   disk1
                                     Logical Volume on disk0s2
                                     58ABF7B9-B6B4-433A-B6DC-40F092F8B90F
                                     Unencrypted
    CoreStorage logical volume groups (1 found)
    |
    +-- Logical Volume Group 4978AF8E-4E70-439E-8193-9F3046567B11
        =========================================================
        Name:         Macintosh HD
        Status:       Online
        Size:         866362945536 B (866.4 GB)
        Free Space:   10256384 B (10.3 MB)
        |
        +-< Physical Volume D687C3C7-3EB4-4EAD-8A30-05362781DC6D
        |   ----------------------------------------------------
        |   Index:    0
        |   Disk:     disk0s2
        |   Status:   Online
        |   Size:     866362945536 B (866.4 GB)
        |
        +-> Logical Volume Family C107D6CA-1DEA-4C2F-9089-1F91123AB269
            ----------------------------------------------------------
            Encryption Type:         None
            |
            +-> Logical Volume 58ABF7B9-B6B4-433A-B6DC-40F092F8B90F
                ---------------------------------------------------
                Disk:                  disk1
                Status:                Online
                Size (Total):          866000367616 B (866.0 GB)
                Revertible:            Yes (no decryption required)
                LV Name:               Macintosh HD
                Volume Name:           Macintosh HD
                Content Hint:          Apple_HFS
    
    
  • by Loner T,

    Loner T Loner T Sep 10, 2016 6:50 AM in response to carrolky
    Level 7 (23,965 points)
    Safari
    Sep 10, 2016 6:50 AM in response to carrolky

    I did check the first output. You do not have a Fusion drive. Please try the backup/erase/restore method.

Previous Page 2