..got a question.
where do i placed the boostrap.dat file?, i pasted on the same folder of wallet.dat but nothing happens.

It goes in the same directory as the exe file, then your command is litedoge-qt -loadblock=bootstrap.dat Note that it will take a while to reconstruct.
No, if you're running the Windows QT wallet it goes in the roaming folder along with your wallet.dat file you backed up first. The .exe can be anywhere...