Create spfile from pfile

I’m having a problem in creating spfile from pfile.I think I don’t have permission to write on Oracle Home. I’m using Windows 8

SQL> startup nomount pfile='initlittle2.ora.txt';
ORACLE instance started.

Total System Global Area  644468736 bytes
Fixed Size                  1376520 bytes
Variable Size             192941816 bytes
Database Buffers          444596224 bytes
Redo Buffers                5554176 bytes
SQL> create spfile from pfile;
create spfile from pfile
*
ERROR at line 1:
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file
'A:ORACLEBASEPRODUCT11.2.0OLTP2DATABASEINITLITTLE2.ORA' 

Any workaround for my problem?