Hello I encountered a problem about my hdd back up. I used to have two hdd before, 1st is 160gb as my main hdd for os and 2nd is my 500gb back up. When I change my main os to ssd , my computer can't read my 500gb hdd anymore,but he can read my 1st hdd which is the 160gb. What should I do?Is there a solution about this problem?It was visible in my bios but everytime I launch it , there is an error saying that my system doesn't see it and it is asking for a rebootable hdd. I also tried to change the sata slots and the arrangement of the hdd in the booting section but nothing happened.