Boot Camp crashes after I installed Sierra 10.13.3

This is my girlfriends Macbook Pro I 13-inch, Mid 2012 I have been trying to get windows running using boot camp for her to use CorelDraw.

Updated to Sierra this afternoon and boot camp keeps crashing. I have no idea what she was running before.

users-MacBook-Pro:~ user$ diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *500.1 GB
disk0

1: EFI EFI 209.7 MB
disk0s1

2: Apple_APFS Container disk2 450.0 GB
disk0s2

3: Apple_APFS Container disk1 49.9 GB disk0s3

/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +49.9 GB disk1

Physical Store disk0s3

/dev/disk2 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +450.0 GB
disk2

Physical Store disk0s2

1: APFS Volume Mac HDD 32.5 GB disk2s1

2: APFS Volume Preboot 20.9 MB disk2s2

3: APFS Volume Recovery 507.2 MB
disk2s3

4: APFS Volume VM 2.1 GB disk2s4

/dev/disk3 (external, physical):

#: TYPE NAME SIZE IDENTIFIER

0: FDisk_partition_scheme *16.1 GB disk3

1: Apple_HFS 16.1 GB disk3s1

users-MacBook-Pro:~ user$

users-MacBook-Pro:~ user$ diskutil apfs list

APFS Containers (2 found)

|

+-- Container disk1 10343B99-5A9B-4676-9E02-CE19A9DA4F55

|
====================================================

|
APFS Container Reference: disk1

|
Capacity Ceiling (Size): 49898106880 B (49.9 GB)

|
Capacity In Use By Volumes:
111738880 B (111.7 MB) (0.2% used)

|
Capacity Available: 49786368000 B (49.8 GB) (99.8% free)

|
|

|
+-< Physical Store disk0s3 D549A063-DB8F-4A47-B038-25432D5499DD

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

|
|
APFS Physical Store Disk:
disk0s3

|
|
Size: 49898106880 B (49.9 GB)

|
|

|
+-> No Volumes

|

+-- Container disk2 F1A30936-BABF-433B-8EC4-208FDB3FF0E2

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

APFS Container Reference: disk2

Capacity Ceiling (Size): 449999998976 B (450.0 GB)

Capacity In Use By Volumes:
35372404736 B (35.4 GB) (7.9% used)

Capacity Available: 414627594240 B (414.6 GB) (92.1% free)

|

+-< Physical Store disk0s2 6F18110E-B854-47B4-B5A3-2E72161F4EF2

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

|
APFS Physical Store Disk:
disk0s2

|
Size: 449999998976 B (450.0 GB)

|

+-> Volume disk2s1 DED363F6-BD4B-3112-8DC3-FBEEE0E7C7AB

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

|
APFS Volume Disk (Role):
disk2s1 (No specific role)

|
Name: Mac HDD (Case-insensitive)

|
Mount Point: /

|
Capacity Consumed: 32539983872 B (32.5 GB)

|
FileVault: No

|

+-> Volume disk2s2 A0F99B00-2F52-43C6-939B-D62F5D283D5C

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

|
APFS Volume Disk (Role):
disk2s2 (Preboot)

|
Name: Preboot (Case-insensitive)

|
Mount Point: Not Mounted

|
Capacity Consumed: 20910080 B (20.9 MB)

|
FileVault: No

|

+-> Volume disk2s3 4E46099E-D8D5-4790-A952-7810C5226571

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

|
APFS Volume Disk (Role):
disk2s3 (Recovery)

|
Name: Recovery (Case-insensitive)

|
Mount Point: Not Mounted

|
Capacity Consumed: 507199488 B (507.2 MB)

|
FileVault: No

|

+-> Volume disk2s4 57DF57A2-839C-42BD-91F4-F132B851554C

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

APFS Volume Disk (Role):
disk2s4 (VM)

Name: VM (Case-insensitive)

Mount Point: /private/var/vm

Capacity Consumed: 2147504128 B (2.1 GB)

FileVault: No

users-MacBook-Pro:~ user$

Unable to open BC assistant how can I coalesced the 50GB back into the main?

Perfect Thanks for the help

Now to install windows 10 I am running a usb flash drive and busy copying the windows files to the drive.

But the last time I did this BC sort of froze while partitioning the drive the blue line carried rite through but ran for about an hour without doing anything else?

Got Windows install running but now it reads cannot be installed on drive 0 partition 3 (windows cannot be installed to this hard disk space Windows must be installed to a partition formatted as NTFS)

I was trying to install windows 10 but boot camp kept freezing on disk partitioning

Sorted just formatted the file thanks Loner T you are a legend!!

I am strugling to get my wifi ro work on windows 10 any help?