Bootcamp Partitioning - Catalina 10.15.5

Hi, cheers for getting back to me. Here is the output (I have put the 16.8 MB partition in bold):

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_APFS Container disk1 874.2 GB disk0s2

3: EFI NO NAME 104.9 MB disk0s3

4: Microsoft Reserved 16.8 MB disk0s4

/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +874.2 GB disk1

Physical Store disk0s2

1: APFS Volume Macintosh HD - Data 592.6 GB disk1s1

2: APFS Volume Preboot 80.7 MB disk1s2

3: APFS Volume Recovery 528.5 MB disk1s3

4: APFS Volume VM 1.1 MB disk1s4

5: APFS Volume Macintosh HD 11.0 GB disk1s5

/dev/disk3 (external, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *240.1 GB disk3

1: EFI EFI 209.7 MB disk3s1

2: Apple_APFS Container disk4 239.9 GB disk3s2

/dev/disk4 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +239.9 GB disk4

Physical Store disk3s2

1: APFS Volume External SSD - Data 198.4 GB disk4s1

2: APFS Volume Preboot 82.6 MB disk4s2

3: APFS Volume Recovery 528.5 MB disk4s3

4: APFS Volume VM 4.3 GB disk4s4

5: APFS Volume External SSD 11.3 GB disk4s5

Many thanks :-)

That worked!! Many thanks for your help and quick responses Loner T. You're a star.