I recently installed an m.2 nvme ssd on my pc and i am using it as a boot drive. Before that, i used a sata ssd as my boot drive but after i got the m.2, i used it as a spare drive in my system as i had no other use for it. However, i built a htpc and i decided to use the spare ssd as my boot drive but after i removed it from the main rig, i couldn't boot into windows. Putting the drive back in the main rig seemed to fix the problem. From the bios i saw that the sata ssd was labeled,besides with its name, that it had windows boot manager on it, despite having the actual OS on a different drive. Any suggestions?