From what I see, you try to execute
cd C:\Users\pawisoon\bfgminer-3.10.0-win64\
And then
bfgminer.exe -o bla.bla.com -u -p -S auto -d all
because I imagine bfgminer.exe is in the suppposed actual repertory (C:\Users\pawisoon\bfgminer-3.10.0-win64)
But actually I'm not sure your two cmd commands are correctly executed (I mean: I'm not sure the repertory is kept as a reference for the execution of the second command)
So why don't just try to execute
C:\Users\pawisoon\bfgminer-3.10.0-win64\bfgminer.exe -o bla.bla.com -u -p -S auto -d all
(no cd and full path to the executable)
Or check out @ginz comment and try to launch the executable directly (not using cmd) if you don't especially want to use cmd.exe