The easiest way to do something like this is to use Windows' built-in Disk Management tool (diskmgmt.msc). Here, you can see your disks, their partitions, and other useful information. You should be able to find your drive listed there. You can then right-click and delete the 32GB partition that the Media Creation Tool made for you and recreate a new, 64(ish)GB partition.
If that doesn't work, you may be able to use the command-line tool DiskPart which is included in Windows as well.
- Start Command Prompt or PowerShell as an administrator.
- Start up DiskPart by typing
diskpart
.
- Run
list disk
to find the disk number of your USB drive.
- Run
select disk x
where x
is the number of your USB drive from step 3.
- Run
clean
.
- Run
create partition primary
.
At this point, your drive should have a 64GB partition that isn't formatted. You should be able to format this partition from the Disk Management tool, but if you want to just go ahead and do it while you're in DiskPart, it's very simple. After running create partition primary
, that partition will be selected and all you will have to do is run format fs=ntfs quick
(assuming you want it to be formatted NTFS).