My passport essential questions - re deleting files, etc

WD Software & Mobile Apps WD Software
3

Ok thanks, but, IF I USE CHECKDISK…

Do I choose “automatically fix file system errors”

or “scan for and attempt recovery of bad sectors”

or BOTH??

AND… HOW do you get rid of files on your passport drive without causing it to backup twice or to become corrupted?

ALSO… can  you answer my other questions in that question I asked in my first post…?

Thanks for your help!