After I changed the log_archive_dest_2 = 'SERVICE=STBY'

LRM-00111: no closing quote for value 'LOCATION=d'
LRM-00113: error when processing file 'd:\oracle\admin\mydb\pfile\initmydb.ora'
ORA-01078: failure in processing system parameters

I get this error then I also modify the log_archive_dest_1
to become log_archive_dest_1 = 'LOCATION=d:\oracle\oradata\mydb\archive\'

I get another error

LRM-00101: unknown parameter name 'SERVICE'
ORA-01078: failure in processing system parameters

it seems quite 'challenge' to setup the standby database.