Jesus Vigo goes over the steps to create a bootable USB to install OS X 10.7-10.8 and OS X 10.5-10.6, as well as how to put multiple versions on the same USB.

IMHO, the right way is to make sure the SSD is set for AHCI mode in the UEFI (BIOS), use the new computer to grab a Win10 install image on a USB stick and go to town installing fresh.

I suspect my old SATA SSD is dying and I would like to move my Windows 10 to a new 970 EVO I purchased. My issue is, I no longer have the USB installer or key for my current copy of Windows.

Mac 911 How to move your Mac’s Photos library to an SSD for better performance If your Photos library is on a hard drive or Fusion drive, consider the low cost of a new SSD.