When you try to create the password file in windows operating system for newly created database and for which we lost sys account password.
Here below I got error message, when I try to create password file:
C:\Users\oracle> orapwd file=C:\app\oracle\product\11.2.0\dbhome_1\database\pwddb02.ora password=manager entries=5 ignorecase=y
OPW-00001: Unable to open password file
cause:
1. missing privileges for oracle user.
2. missing proper grants to dba_ora group.
Solution:
add oracle user to dba_ora group.
correct the access levels for oracle home directory:
now you can create the password file.