My MBWE stopped working months ago. I was able to copy many of the files before it bit the dust to my (newer) My Book Live Duo. I suspected the disk drives on the MBWE were fine (not verified - just my hunch). I'd like to check the files on the MBWE drives one last time so I popped them into my My Book Live Duo and I get a solid yellow light which I beleive is an error condition. Any assistance and ideas would be appreciated on how I might get the MBWE drives mounted and visible to a Win 7/8 operating system. Both WD NAS units were configured as RAID 1. Thanks …
The answer to your Post title question is "yes". Assuming your MBWE HDD is still physically healthy (CrystalDiskInfo should tell you), you should be able to pith it and use it in your MB Live.
The answer to your real problem, though, is "no". You cannot just pop the drive out of one WD storage box and into another and have it just continue working.
The reason is that there is no intelligence resident in the motherboard of any WD storage box. Just as with a PC, all of the intelligence is stored in the HDD. As a rule, WD uses four HDD partitions in its storage boxes. Partition 1 contains BIOS memory, since there is no non-volatile R/W memory on the motherboard. Partition 2 contains the Operating System. Partition 3 is swap space. Partition 4 is User Storage.
When you pop your MBWE drive into your MB Live box it fails because the MB Live box does not organize Partitions 1 and 2 (nor use the same compiled OS image) the same way as the MBWE.