I am running a 2010 MacBook with Sierra 10.12.6. I have two drives in it, and the second drive contains a Boot Camp partition. Initially it was working fine, but I may have done something to the file system on the drive. Long story short, it shows the Mac partition, and I can startup from Windows using option at boot, but the Startup Disk control panel and Disk Utility do not see it. I've run Disk Utility also in Recovery, and done Windows disk repairs. Any ideas how I can fix this?
