Firstly, a bit of background: My 7 year-old laptop recently died, and I have now bought myself a PC. I want to transfer my files from the old laptop hard drive to the new one inside the PC. To do this, I was aiming to boot into Windows using the new HDD, then read the files from the old HDD via SATA.
However, when I plug the old HDD into the motherboard, it gets used for booting; even when I've selected the new drive as the boot device. I have tried different combinations of motherboard locations for each of the HDDs (SATA 0, SATA 1) but to no avail.
After realising that AHCI was enabled on my motherboard - and that this therefore may allow hot-plugging - I tried booting to Windows on the new HDD then connecting the SATA cable to the old HDD. This hardware change wasn't recognised by Windows, so I assume that the old drive may not have been set up this way?
My motherboard is a Gigabyte Z77 series. Any pointers would be great - I'd like to avoid buying a USB hard drive enclosure if I can.