Hi. now I have a problem... Again.... 
I have a pc with ssd and an old laptop with hdd and I want to transfer a file. When I connect the hdd the pc boot from hdd and the ssd disappeared. I disconnect the hdd and boot from ssd again
))) (I laugh a lot)
So it is a way to do this happen?

I have a pc with ssd and an old laptop with hdd and I want to transfer a file. When I connect the hdd the pc boot from hdd and the ssd disappeared. I disconnect the hdd and boot from ssd again

So it is a way to do this happen?