What did windows 7 do to the hard drive?

Question

System administration

I reinstalled windows ... then they convinced that everything would be fine ... I
removed all the backlogs from the hard drive under Windows, so that Windows canonically write the hidden partition with the bootloader to it, connected it with a zero SATA device ...
For some reason, the system put something then (I suspect that the bootloader) to the second hard drive and the hard drive intended for files (2 TB and it's good that it was empty) is now not visible from the OS, if you reinstall everything again, then where is the guarantee that this will not happen again? By the way, before reinstallation, the bootloader was in the same position ... I don’t understand why she puts it not on zero, but on the first SATA ... who knows, help

Answer 1

I don’t know what the reason was, but the Windows bootloader signed up there, why this disk was not visible from the xs explorer. In the device manager, the "open in explorer" item was not active, although the disk itself and the partition were present as it was before. The problem was solved by formatting both disks and reinstalling Windows. By the way, the disk opened normally and the bootloader on it was visible from live USB.

Answer 2

Perhaps the point is also that a 2 TB disk is in MBR, and in order for Windows to recognize it normally, it must be in GPT (from 1.5 Terabytes)