Bootcamp won’t see bootable Windows install media on my 2011 iMac

I am trying to install Windows 8.1 on my 2011 iMac. I have the latest version of El Capitan installed.

That may not seem hard, cause I could just use Bootcamp right?
Well, wrong. I can’t really use bootcamp, because it doesn’t give me the ability to create a bootable USB drive.

I know there is a way to work around this by changing the .plist file inside the bootcamp app. But I spoke with apple support staff, and they say that those system files are now patched, and not editable anymore.

So I used another computer to make a bootable usb drive, but unfortunately Bootcamp doesn’t recognize that USB drive.

After that I tried burning the ISO file on a DVD, but bootcamp won’t recognize that either. (I think that may possibly be because there may be a problem with the superdrive in my iMac)

So the problem here is that Bootcamp doesn’t recognize anything bootable I create, wether it’s a USB drive or a DVD it won’t be recognized.

I also can’t install Windows using the function of Bootcamp that allows you to install it using only an ISO file on the computer, because the version of bootcamp that is installed on my iMac also doesn’t have that function.

Can anyone help me? I’d rather not use any 3rd party ways to install Windows, I like using Bootcamp. Thanks in advance!

High Sierra partition gone after updating windows (bootcamp)

I have High Sierra and Windows 10 installed on my mac (2017).
I was working on windows, and atfer shutdown, Windows asked to update.
So i’ve clicked Update and Restart, and after that, Mac restarted, but then windows booted. I was suprised.

I’ve restarted my mac with Option key – there is no OS X on the list anymore.
Right now Mac in recovery mode is seeing OS X partition as “Windows recovery”.
I’ve installed new version of OS X on external drive, and OS X is not seeing this partition – it looks like it’s corrupted.

Do you think, it’s possible to fix this ? I’m in deep troubles ….
Thank you.

enter image description here

Macbook Pro 2016 touch bar freeze in bootcamp after installing Visual Studio with Hyper-V

Yesterday I’ve installed bootcamp, Windows 10 Pro, on my new tb/MBP (late 2016). Everything worked fine until I’ve installed Visual Studio 2015 (Update 3) with all of its components (50GB~).

After I’ve rebooted the computer, it took ~10 minutes to load Windows (waiting at the dark screen with Windows logo and dots loading animation). Then – the keyboard and trackpad do not respond (even the keyboard light is turned off). The Touch Bar sometimes works and sometimes not.

I’ve rebooted to macOS and everything works fine.

I’ve read many threads and saw that it may be related to Hyper-V, which Visual Studio uses for Mobile Developement.

So, how can I disable Hyper-V so I can get back my MBP to normal? I don’t want to re-install Windows, and I can’t work without Visual Studio…

I can no longer boot into macOS after resizing my bootcamp partition

The Problem: My macOS partition doesn’t appear as an option at boot

Background: I had a main el capitan partition and a bootcamp partition. I used the EaseUS program to resize the bootcamp partition from 90GB to 45GB and after rebooting, I could no longer see any option but ‘Windows’ when holding alt at boot.

My Initial Investigation: I took a look at my paritions in three different places: The EaseUS program, diskpart on windows, and the disk utility on macOS Recovery Mode.

On both EaseUS and diskpart, my partitions look fine:
EaseUS
diskpart
However, in disk utility in recovery mode, it looks a bit different. On the sidebar I can only see one child partition of the SSD (BOOTCAMP). However when inspecting the disk, it shows three partitions (Untitled : 145.36GB, Untitled: 650MB, BOOTCAMP: 48.32GB) and a ‘Child count’ of 4. I wish I could provide a screen shot, but AFAIK this is not possible with recovery mode.

I also ran first aid on the SSD from disk utility and everything verified as OK.

Additional Comments: I’m a bit out of my depth here and would really appreciate any advice as to how I can boot into macOS again

Edit #1:

In response to @DavidAnderson
I am using a an early 2015 13″ Retina MacbookPro (MacbookPro 12,1).

My Volume 2 details are as following:

Partition 2
Type    : de94bba4-06d1-4d40-a16a-bfd50179d6ac
Hidden  : Yes
Required: No
Attrib  : 0000000000000000
Offset in Bytes: 209735680

  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
* Volume 2         Macintosh H  HFS    Partition    135 GB  Healthy    Hidden

And my volume 3 details are:

Partition 3
Type    : de94bba4-06d1-4d40-a16a-bfd50179d6ac
Hidden  : Yes
Required: No
Attrib  : 0000000000000000
Offset in Bytes: 145570975744

  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
* Volume 3         Recovery HD  HFS    Partition    619 MB  Healthy    Hidden

Edit #2:

I was able to fix it with the accepted answer!

I used gdisk and the t command to set the GUIDs as recommended and then used the the expert command a (expert commands are accessed with x) to set the attribute field #49 to get the attribute value recommended. Works perfectly now!

High Sierra and Bootcamp – issue after WIndows 10 partition size change

enter image description hereRecently i have installed High Sierra and Windows 10.
I have 250gb SSD drive that i found is badly sliced (too much space for win10).
So i’ve used EaseUS Partition Master to reduce windows partition.
After my change and reboot, i’ve noticed that OSX is not starting by default, but windows started by default.
So i’ve rebooted mac again, with OPTION button pressed.
Then, list of available systems appeared, but only windows can be selected, OSX is there no more.
Please, can anybody tell me if there is any way to start OSX again ?
Windows 10 sees this partition but i have no idea if it’s formatted or not , i have no idea what happened. Thank you.

EDIT: Do you think this solution will fix my issue ?
“Can try reinstalling Mac OS X on your Mac partition, you shouldn’t lose your data it will just install the OS back on the hard drive, you will be able to keep your Windows Partition, this will work but it depends on how damaged your system partition was, so make sure you have a backup of your data. Then give it a try. ”
https://discussions.apple.com/thread/3571327

How do I fix “Your Disk Could Not Be Partitioned” isssue with BootCamp Assistant?

I’m Alex and I’m attempting to install Windows 10 on my iMac 27″ (2012) with 3TB+128GB Fusion Drive, but during install procedure I get the same error “Your Disk Could Not Be Partitioned” without any further explanation. The first time I tried to install Win, I got stuck on Apple Support Software download, so I canceled and I downloaded the software on a pen drive myself. So I uncleared “Download Apple Support Software” and I only cleared the option about installing Windows. The first time the partitioning started, but it got stuck. So I closed BootCamp and I repaired the disk.
Since that time, BootCamp never worked anymore. I tried any possible kind of repair and recovery, including:

  • Internet recovery
  • /sbin/fsck -fy from Single User Mode
  • Repair using Disk Utility in Recovery Mode, which all said Your Disk appears to be OK!

I have also noticed a lag with Safari Smart Bar (I don’t know if it has anything to do with this, but I’m totally sure that it shouldn’t happen, because I have 16 GB of RAM and a 3.6 GhZ Quad Core Intel CPU, so it MUST have to do with the Fusion Drive.

Before closing this question
I’d like to mention that my Fusion has been replaced with another for free due to extreme disk corruption
https://www.apple.com/support/imac-harddrive-3tb/
Help will be much appreciated!

Windows 7 installer wont boot after creating partition for Bootcamp

I’m trying to install Windows 7 on my MacBook Pro (13 inch Mid 2012) running OS X 10.7.5
I’m using a USB drive to create the boot disk, and I also downloaded the drivers needed from the apple website.
After creating the partition and restarting, the system tells me that there is no bootable drive available. I try holding the option key and then selecting the windows partition and then it shows the same screen.

Any ideas of what’s wrong?

MacBook Pro not recognizing USB ethernet adapter in macOS, but does in Bootcamp

I have a 2015 MacBook Pro. I recently moved and don’t yet have a Wi-Fi router, so I have to use an ethernet cable. To do this I’m using a USB ethernet adapter.

When I plug it in Bootcamp automatically detects it and connects to the internet. However, when I switch over to macOS, it doesn’t detect anything. I’ve tried to manually set it up, but even then it acts like nothing is there.

I don’t understand why I can connect on one OS but not the other on the same machine.

How can I troubleshoot this?

Fixing failed Bootcamp partition using Diskutils

I tried to create a bootcamp partition using the Bootcamp assistant, however when it should have booted into Windows to continue the installation, it failed and ended up taking the majority (>40GB) into the abyss. I’ve since decided just to run Parallels for the time being, but I’m running on only a fraction of my drive space and I cannot recover the partition or see it in the normal disk management tool. In the normal tool, it shows the drive is 121GB but MacOS can only use 68GB of that with the rest invisible.

I first tried fsdisk in the recovery command prompt, to no avail. Next I went to terminal. I know the failed partition is in here, but I’m uncomfortable removing anything as I don’t have the experience.

Here’s the output of diskutil list:

    /dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk1         68.0 GB    disk0s2

/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +68.0 GB    disk1
                                 Physical Store disk0s2
   1:                APFS Volume Macintosh HD            61.5 GB    disk1s1
   2:                APFS Volume Preboot                 23.3 MB    disk1s2
   3:                APFS Volume Recovery                519.0 MB   disk1s3
   4:                APFS Volume VM                      1.1 GB     disk1s4

/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:       Microsoft Basic Data Backup                  1000.0 GB  disk2s2

Here’s the output of disktutil info disk1:

   Device Identifier:        disk1
   Device Node:              /dev/disk1
   Whole:                    Yes
   Part of Whole:            disk1
   Device / Media Name:      APPLE SSD SM0128G

   Volume Name:              Not applicable (no file system)
   Mounted:                  Not applicable (no file system)
   File System:              None

   Content (IOContent):      EF57347C-0000-11AA-AA11-00306543ECAC
   OS Can Be Installed:      No
   Media Type:               Generic
   Protocol:                 PCI
   SMART Status:             Verified
   Disk / Partition UUID:    9F300D98-E7ED-44EC-AF87-706495D5D6CB

   Disk Size:                68.0 GB (68000133120 Bytes) (exactly 132812760 512-Byte-Units)
   Device Block Size:        4096 Bytes

   Read-Only Media:          No
   Read-Only Volume:         Not applicable (no file system)

   Device Location:          Internal
   Removable Media:          Fixed

   Solid State:              Yes
   Virtual:                  Yes
   Hardware AES Support:     No

Here’s the output of diskutil info disk0:

   Device Identifier:        disk0
   Device Node:              /dev/disk0
   Whole:                    Yes
   Part of Whole:            disk0
   Device / Media Name:      APPLE SSD SM0128G

   Volume Name:              Not applicable (no file system)
   Mounted:                  Not applicable (no file system)
   File System:              None

   Content (IOContent):      GUID_partition_scheme
   OS Can Be Installed:      No
   Media Type:               Generic
   Protocol:                 PCI
   SMART Status:             Verified

   Disk Size:                121.3 GB (121332826112 Bytes) (exactly 236978176 512-Byte-Units)
   Device Block Size:        512 Bytes

   Read-Only Media:          No
   Read-Only Volume:         Not applicable (no file system)

   Device Location:          Internal
   Removable Media:          Fixed

   Solid State:              Yes
   Virtual:                  No
   Hardware AES Support:     No

Finally, the output of diskutil apfs list:

APFS Container (1 found)
|
+-- Container disk1 9F300D98-E7ED-44EC-AF87-706495D5D6CB
    ====================================================
    APFS Container Reference:     disk1
    Size (Capacity Ceiling):      68000133120 B (68.0 GB)
    Minimum Size:                 65509048320 B (65.5 GB)
    Capacity In Use By Volumes:   63281377280 B (63.3 GB) (93.1% used)
    Capacity Not Allocated:       4718755840 B (4.7 GB) (6.9% free)
    |
    +-< Physical Store disk0s2 82977036-F65B-4377-8D6C-833A7CB52DA0
    |   -----------------------------------------------------------
    |   APFS Physical Store Disk:   disk0s2
    |   Size:                       68000133120 B (68.0 GB)
    |
    +-> Volume disk1s1 136901F2-6597-37E8-816B-8DBC0F223C18
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk1s1 (No specific role)
    |   Name:                      Macintosh HD (Case-insensitive)
    |   Mount Point:               /
    |   Capacity Consumed:         61543849984 B (61.5 GB)
    |   FileVault:                 No
    |
    +-> Volume disk1s2 033F3AF2-BD86-4F1F-811E-EE6DCB71B51F
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk1s2 (Preboot)
    |   Name:                      Preboot (Case-insensitive)
    |   Mount Point:               Not Mounted
    |   Capacity Consumed:         23252992 B (23.3 MB)
    |   FileVault:                 No
    |
    +-> Volume disk1s3 F23EC2A3-2305-46DA-9508-8393695AA97F
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk1s3 (Recovery)
    |   Name:                      Recovery (Case-insensitive)
    |   Mount Point:               Not Mounted
    |   Capacity Consumed:         519036928 B (519.0 MB)
    |   FileVault:                 No
    |
    +-> Volume disk1s4 4CF8D2E3-2889-4AC1-87E4-F3E62BE7C949
        ---------------------------------------------------
        APFS Volume Disk (Role):   disk1s4 (VM)
        Name:                      VM (Case-insensitive)
        Mount Point:               /private/var/vm
        Capacity Consumed:         1073762304 B (1.1 GB)
        FileVault:                 No

So it looks like disk1 is what I need to keep, the MacOS install and all the space I’m using. FYI disk2 is a mounted external hard drive unrelated to this issue.

What commands should I run to fix?

Bootcamp to generate Windows 10 USB key – Needs NTFS partition

I am trying to use Bootcamp to generate a Windows 10 USB key (64GB).
I use Diskutil to initialize the key as MS-DOS FAT with MBR.
The Bootcamp Assistant selecting the three options on the dialog box.
It all works fine, but when I use the key to boot and finish the installation it tells me it cannot install Windows on that partition and that it needs an NTFS partition instead.

Thing is, the partition was reformatted by Bootcamp Assistant itself before copying the WindowsSupport software to it:

Macbookpro-2:~ silvano$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage Macbook HD              499.4 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

/dev/disk1 (internal, virtual):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macbook HD             +499.0 GB   disk1
                                 Logical Volume on disk0s2
                                 69E26A69-CF3B-4E39-B7F9-BC8154952589
                                 Unencrypted

/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *63.2 GB    disk2
   1:                 DOS_FAT_32 WININSTALL              63.2 GB    disk2s1

Below is the current state of my partitions. Partition 4 is where I am trying to install. I boot from EFI and it says it has an MBR, whereas he wants GPT.

Macbookpro-2:~ silvano$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage Macbook HD              451.4 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data                         48.0 GB    disk0s4

/dev/disk1 (internal, virtual):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macbook HD             +451.0 GB   disk1
                                 Logical Volume on disk0s2
                                 69E26A69-CF3B-4E39-B7F9-BC8154952589
                                 Unencrypted

/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *16.0 GB    disk2
   1:                 DOS_FAT_32 WININSTALL              16.0 GB    disk2s1

Any tips welcome.

MBP 2013, Sierra 10.12.6

Silvano