Hello, hope you have been having a nice day! I recently acquired this laptop, it's a Lenovo T420S, It came with a defective hard drive so I bought a 128GB Samsung SSD. Although the problem lies when trying to install Windows. Without the drive it boots straight into the Windows installation located on a USB drive, but with the SSD inside it tries to boot into the SSD (with no OS on it). Later instead of going further down the list and eventually booting of the USB drive it just shows me a spec list. I've even tried using an external drive but the Windows installation claims it has to install on a drive connected to a SATA port. Worst of all the Bios wont let me change the boot priority, and the quick boot is bust. So, is there any way around this? Thank you in advance.