USB stick split what to do?

After installing Chromium OS on my laptop, my 16GB USB stick was split into two. 1GB module and 13GB module. What to do?

Right click on the partitions and delete them, then create a new volume in full size.

Command Prompt (CMD)> diskpart> list disk> select disk "number"> clean.
Then format in disk management.

Okay, formatted and deleted the volume in the middle, then it all put together to a good 14GB and I then assigned the volume a letter.

Jo, then just format and let's go.