Inaccessible boot device (SSD)

[Bolantier]

Hey guys, I have a problem with my ssd. This is an old ssd (A) with windows already in it. Because i wanted to do some testing I installed another ssd (B) from another computer to have access to some files. Everything was working fine. After I disconnected the ssd (B) I tried to boot to the ssd (A) and then it crashes and it gives me the error INACCESSIBLE_BOOT_DIVICE. I tried changing the boot priority from the UEFI BIOS and it just shows a white underscore and then the screen goes absolutely black. [both ssds have windows 10 OS]

P.S.:I am able to boot to the faulty ssd (A) in safe mode.

PC specs:
Cpu: Intel Core i7 6700K 4.5GHz (1.325v)
Motherboard: Asus Z170-A retail
Ram: 16 gigs HyperX 2666Mhz
PSU: Evga G2 750W 80PLUS Gold
Gpu: Gigabyte Gtx 970 Extreme
Ssd (A): Samsung 750 evo 240gb
Ssd (B): Adata SP920 256 gb

 

[Boogieman_WD]

Hey there, Bolantier.

Have you tried to boot to Windows with SSD (B), because it sounds like there might have been some conflict between the 2 operating systems (plus you're never supposed to boot to Windows if it was installed on a different system). If you are able to boot to safe mode, then perhaps you might be able to try and repair your OS. You can try out a recovery drive, or try repairing it via the Windows 10 installation media (USB/DVD), or you can use Recovery when booted to Safe Mode In order to refresh your OS without affecting your files.
If that doesn't work, you could try to connect the drive to a different SATA port with different SATA cables and see if the same thing happens.

Hope that helps. Please let me know how it goes.
Boogieman_WD

 

[Bolantier]

Thanks for the answer. Fortunately clearing the CMOS by removing the mb battery solve the problem.