Best way to flatten & format a drive?

[KodachromeKid]

I used Hard Disk Manager 15 to migrate my C: drive over to an SSD, and now I want to format the old C: drive, but it is partitioned. What is the easiest way to create one contiguous NTFS space on this drive for other uses?

Thanks!

[fireworker]

It's possible to start "wipe" the disk in HDM15, to interrupt after a few seconds and then create and format a partition on the hdd.
It's possible do in cmd. Run cmd as an administrator.
diskpart
list disk
Choose your old drive, eg 2
select disk 2
clean
then you can start HDM15 and then create a partition with it. or continue cmd.
if the hdd is more than 2 TB, you need to convert it to GPT
convert gpt
Next
create partition primary
select partition 1
format quick fs=ntfs