Dual Boot File Access Denied - Microsoft Community

i have pc set dual boot system windows 10 64 bit , windows 10 32 bit.  the primary account names , email addresses both os's identical.  when try access files created on 64 bit os 32 bit os, i'm denied access.

when check "advanced security settings" document says:

   owner: unable display current owner
   permissions: you not have permission view object's security properties, administrative user.
                        try taking ownership of object, includes permissions view it's properties, click change above.

i'm curious "ownership" suggestion.  i created files , folders 64 bit os thought owned them.

when click "change" window "select user or group" appears contains 3 fields:

   select object type    (what type should select?)

   from location         (how/where determine name of correct location?)

   enter object name    (how/where find object name?)

at point, don't know how proceed

it's been 3 weeks , there no answers.  are these dumb questions or difficult answer?  is windows 10 complex?

Windows / Windows 10 / Security & privacy / PC