Bootcamp error - your disk could not be partitioned

i really don't know! here is the info

intel 10 Series Chipset:

 Vendor: Intel

 Product: 10 Series Chipset

 Link Speed: 6 Gigabit

 Negotiated Link Speed: 6 Gigabit

 Physical Interconnect: SATA

 Description: AHCI Version 1.31 Supported

APPLE HDD ST2000DM001:

 Capacity: 2 TB (2,000,398,934,016 bytes)

 Model: APPLE HDD ST2000DM001          

 Revision: AQ03   

 Serial Number: Z8E0HGK9

 Native Command Queuing: Yes

 Queue Depth: 32

 Removable Media: No

 Detachable Drive: No

 BSD Name: disk1

 Rotational Rate: 7200

 Medium Type: Rotational

 Partition Map Type: GPT (GUID Partition Table)

 S.M.A.R.T. status: Verified

 Volumes:

EFI:

 Capacity: 209.7 MB (209,715,200 bytes)

 File System: MS-DOS FAT32

 BSD Name: disk1s1

 Content: EFI

 Volume UUID: 0E239BC6-F960-3107-89CF-1C97F78BB46B

disk1s2:

 Capacity: 2 TB (1,999,539,175,424 bytes)

 BSD Name: disk1s2

 Content: Apple_CoreStorage

Recovery HD:

 Capacity: 650 MB (650,002,432 bytes)

 File System: Journaled HFS+

 BSD Name: disk1s3

 Content: Apple_Boot

 Volume UUID: BBB860B4-3093-33F9-8895-0F8EB53486D8

/dev/disk0 (internal):

  #:            TYPE NAME          SIZE    IDENTIFIER

  0:   GUID_partition_scheme             121.3 GB  disk0

  1:            EFI EFI           314.6 MB  disk0s1

  2:     Apple_CoreStorage Macintosh HD      120.9 GB  disk0s2

  3:         Apple_Boot Boot OS X        134.2 MB  disk0s3

/dev/disk1 (internal, physical):

  #:            TYPE NAME          SIZE    IDENTIFIER

  0:   GUID_partition_scheme            *2.0 TB   disk1

  1:            EFI EFI           209.7 MB  disk1s1

  2:     Apple_CoreStorage Macintosh HD      2.0 TB   disk1s2

  3:         Apple_Boot Recovery HD       650.0 MB  disk1s3

/dev/disk2 (internal, virtual):

  #:            TYPE NAME          SIZE    IDENTIFIER

  0:         Apple_HFS Macintosh HD      +1.7 TB   disk2

                 Logical Volume on disk0s2, disk1s2

                 05BB9A7E-3116-4121-979D-489C9175FA35

                 Unencrypted Fusion Drive

/dev/disk3 (disk image):

  #:            TYPE NAME          SIZE    IDENTIFIER

  0:              CCCOMA_X64FRE_EN-US... +5.4 GB   disk3

what do you suggest as a better choice ? that won't affects performance

i need windows for gaming , is the specs of my pc good for that ?

thanks a lot for your help, i will try upgrade to Mojave, if i got any issue i will get back to you.

Thank you! :)