Windows 7 Boot/BCD error 0xc000000f

I have 2 disks in my laptop: an SSD (240 GB, this disk contains my windows 7 OS that I always use) and a normal HDD (1TB, on this one there is also a windows 7 OS installed but I don't use that anymore).

Now my problem is that I get the 0xc000000f error when I want to start up my pc. I think I accidentaly marked a disk as active or not with the disk manager on windows.

I already tried the bootrec options when did repair windows (I do have a USB with Windows 7 Iso):

bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

I also tried putting the correct disk and partition as active with Diskpart on the command prompt when trying 'Repair windows' None of them worked