Boot Camp error - the startup disk cannot be partitioned or restored to a single partition.

I use an iMac (retina 5K, 27 inches, end of 2014), the Version of OSX EL Capitan 10.11.1.

I tried to install windows via bootcamp, but failed. And then, when I'm trying to use Boot Camp Assistant to remove the existing Windows Partition.

Below will error was triggered.

The startup disk cannot be partitioned or restored to a single partition.

The startup disk must be formatted in a single volume in Mac OS extended (journaled) or already partitioned by Boot Camp Assistant to install Windows.

I want to just delete the Windows Partition and reinstall, can someone help me please

Here are my details to disc...

List of $ diskutil

/ dev/disk0 (internal, physical):

#: NAME SIZE TYPE IDENTIFIER

0: GUID_partition_scheme * GB 121,3 disk0

1: disk0s1 EFI EFI 209.7 MB

2: Apple_CoreStorage Macintosh HD 121.0 GB disk0s2

3: disk0s3 Apple_Boot Boot OS X 134,2 MB

/ dev/disk1 (internal, physical):

#: NAME SIZE TYPE IDENTIFIER

0: GUID_partition_scheme * 1.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_CoreStorage Macintosh HD 895.8 GB disk1s2

3: disk1s3 Apple_Boot Recovery 650,1 MB HD

4: NO NAME 104.9 MB disk1s4 EFI

5: NO NAME 104.9 MB disk1s5 EFI

6: EFI No. 104.9 MB disk1s6 NAME

7: EFI No. 104.9 MB disk1s7 NAME

8: disk1s8 NO NAME 104.9 MB EFI

/ dev/disk2 (internal, virtual):

#: NAME SIZE TYPE IDENTIFIER

0: Apple_HFS Macintosh HD + 1.0 TB disk2

Logical volume on disk1s2, disk0s2

6F4F36AE-BEB3-43EA-8390-C5E7F46574B6

Fusion unencrypted drive

List of cs $ diskutil

CoreStorage groups of logical volumes (1 found)

|

+ Logical Volume - Group 7C72C890-404F-4CE8-AA74-3AAD4B71D773

=========================================================

Name: Macintosh HD

Status: online

Dimensions: 1016788279296 B (1.0 TB)

Free space: 114688 B (114.7 KB)

|

+-< physical="" volume="">

|   ----------------------------------------------------

|   Index: 0

|   Disc: disk1s2

|   Status: online

|   Dimensions: 895799427072 B (895,8 GB)

|

+-< physical="" volume="">

|   ----------------------------------------------------

|   Index: 1

|   Disc: disk0s2

|   Status: online

|   Dimensions: 120988852224 B (121.0 GB)

|

+-> EB5AF0A2-99C5-41DB-B58F-D98B3589AC65 family of Logical Volume

----------------------------------------------------------

Encryption type: no

|

+--> Logical Volume 6F4F36AE-BEB3-43EA-8390-C5E7F46574B6

---------------------------------------------------

Disc: disk2

Status: online

Size (Total): 1010932908032 B (1.0 TB)

Reversible: no

Name: Macintosh HD

Volume name: Macintosh HD

Content indicator: Apple_HFS

LVG Type: Fusion, sparse

$ sudo fdisk/dev/disk0

Disk: geometry / dev/disk0: 14751/255/63 [236978176 sectors]

Signature: 0xAA55

From end

#: cyl hd s - cyl hd s id [Start - size]

------------------------------------------------------------------------

1: EA 1023 254 63 - 1023 254 63 [1-236978175]

02:00 0 0 0-0 0 0 [0-0] unused

03:00 0 0 0-0 0 0 [0-0] unused

04:00 0 0 0-0 0 0 [0-0] unused

Delete disk1s4-disk1s8 using disk utility, run

Reset the management system (SCM) controller on your Mac - Apple Support

How to reset the NVRAM on your Mac - Apple Support

and try again Deputy BC.

Tags: Windows Software

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