I have a computer that I have restored and it is a low end gaming PC, I reused the SATA 1 HDD (250 GB) so it is really slow and it should die soon and I have installed Windows 8 Pro and upgraded to Windows 8.1 Pro and when Windows 10 comes out it will be free for the first year. From what I have seen, when you upgrade an OS, you still have the original key to your first OS. I want to keep Windows 10 even after the hard drive dies, so basically I want to back up the HDD and when it dies I will buy a new one (maybe an SSD) and just install Windows 10 or higher and not have to purchase a Windows 10 product key. I need a bootable backup because I will take a completely empty unallocated drive and install the OS I had before the hard drive died because I only have a windows 8 installation dvd and not windows 10. I am using AEOMI OneKey recovery 1.1 to make a new partition on the actual Hard drive for a time when I need to do a factory restore kinda like HP does, but this only works on the primary hard drive and I can't use it on any other hard drive except the one the OS is installed on. I would like this to be a bootable USB like a flash drive or my portable hard drive, but if I could create an installer\backup and save it as an ISO is could make a bootable USB after it dies. Does anyone know how to do any of this for free? Thanks for your help.