repair the volume boot os x in my passport ultra for mac?

Externally connect erroneous hard disk to healthy Macintosh.

So just follow this simple guideline and secure your data first. But it is recommended to safeguard entire data present on your system before you get into repair process since files may go missing/got delete if anything goes wrong during fixation of error. You can fix error problems found with partition map which might prevent booting using below troubleshoot. You might get this error because of modifications done on your Mac boot partition or when Mac partition got corrupt/damage. Is there any way to fix this error? I don’t want to lose my data because this is my work computer. Now I am facing this error “Problems were found with partition map which might prevent booting”. But in middle of Windows Setup, I got an error message that stated, 'Windows could not update computer's boot configuration. Later I couldn’t boot my system not even in safe mode. But I couldn’t install it properly so I put Win 10 usb and installed.

“Hi, I tried to create a Bootcamp partition and install Win 10 on my Mac machine yesterday.

Repair the volume boot os x in my passport ultra for mac?