Windows wont recognize ssd anymore

[HardStroke]

I have the a400 from kingston with windows 10

I connected a seagate hdd from an old laptop to see if it will boot to it because i need to restore some stuff from there.

It booted to starting windows (after i did windows repair) and then a blue screen that lasted 1 second and again, boot, blue screen, boot blue screen.

I disconected the hdd and tried to boot to my ssd and it says that there are not connected devices with an operating system

How is that possible?

On the boot manager in bios it does show the a400 but i can boot to it

Help? 

I can boot to my other hhd with windows 7

Maybe the os is curropted on the ssd because it was connected?

Maybe the system repair on the other hdd messed the os on the ssd?

[seagate_surfer]

Same thread, right...