I keep running into this error when running Boot Camp Assistant:
Boot Camp Assistant was unable to verify if the Windows partition
contains a Windows installation. This may be because BitLocker is
enabled on the partition. If so, disable BitLocker on the disk
before removing Boot Camp.
Here is my diskutil list output:
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *250.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Microsoft Reserved 16.8 MB disk0s2
3: Apple_APFS Container disk1 249.7 GB disk0s3
/dev/disk1 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +249.7 GB disk1
Physical Store disk0s3
1: APFS Volume Mac OS - Data 19.9 GB disk1s1
2: APFS Volume Preboot 30.1 MB disk1s2
3: APFS Volume Recovery 525.8 MB disk1s3
4: APFS Volume VM 1.1 GB disk1s4
5: APFS Volume Mac OS 11.1 GB disk1s5