2 of 2 formatting

I just did resolve this issue today! You might like to try this.

SQL> create spfile from pfile='E:\app\<UID_W_INST_ORCL>\product\11.2.0\dbhome_1\database\INITatsm.ORA';

Then,

SQL> Startup

This will help you for sure. The only thing that you need is init.ora file.