need to xfer from bitcoin-qt to core
The blockchain and your wallet file are stored in the Bitcoin Core data directory. This directory is different from the install directory where all of the binaries are. When you start Bitcoin Core, go to Help > Debug Window and see what folder it is using as its datadir. Make sure that that is what you expect it to be; if you have changed the datadir (by choosing a different one when you first started the client), then make sure that that is what Bitcoin Core is using. Otherwise it will use the default datadir of C:\Users\&lt;your username&gt;\AppData\Roaming\Bitcoin.