In either case, the Windows 10 ISO file is the best way to install Windows 10. Here's how to download it for free, so you can get started. Note: support for Windows 10 will end on October 14 ...

Note : While this guide uses VirtualBox, it is not the only free VM software available ... Once you're at the Windows 10 desktop, you'll need to install all of the proper drivers for VirtualBox.

Make sure to not delete anything on your old drive Use a Windows 10 DVD or USB drive with installer on to begin installation.