I bought a 1 TB Toshiba Desktop Internal Hard Drive to test restoring my wife's computer using an image created in Macrium Reflect. Wanted to do this in advance of installing Windows 10 Creator over a Windows 10 Pro that won't find updates (a thread in Windows 10). I was able to restore successfully and now I have the Toshiba with a copy my wife's system. I would like to test it on another system but I'm unsure how to clean off what is on there now. Most of what I found via Googling assumes one wants to reinstall the operating system which I don't want to do. Similar results on the Toshiba site. I do have a USB 3.0 enclosure which I can use to do the cleaning/wiping - I'm just not sure how to proceed.