My laptop had a hardware issue while under warranty so I received a new laptop and am sending my old laptop and hard drive back. I want to wipe all data off of all partitions of my HDD, and send it back as a single blank NTFS partition.
I know Google returns many ways to format the hard drive, but I'm not sure which way is best for my scenario. I mainly used the laptop for school assignments and browsing so there's no sensitive data on it. Which way is best for what I want to do?
I already have a Ubuntu 14.04 live USB