You can do this by using diskpart on Windows:
- Open an elevated command prompt.
- Note the disk number that corresponds to your USB drive (it should be obvious going by size)
select disk Xwhere X is the number from step 4
list partition– There should be two, numbered 0 and 1, each about 7 GB
select partition 0
select partition 1
create partition primary
- Exit Command Prompt (type
exitor just close the window)
- In Windows, go to Computer and try to open the disk. It will ask you to format it.
- Format it with the default settings and give it a name if you want.
It should now a single, unified partitioned drive.