Ok, I specify that all my past transactions appear in the "Transactions" of the new version Bitcoin CORE window, but the money is still 0, since we are still in the process of "re-indexing of the blocks on the disk ".
It will take a while to update the balance. When re-indexing is done you should have your full balance.
Ok thank you very much. I did a "cut and paste" File "wallet.dat" only on a USB key. Is it not necessary to copy other files in C:\Users\VINCENT\AppData\Roaming\Bitcoin as "blocks" "chainstate" File, "database", "peerst.dat", "db", "debug"?
wallet.dat is all you need. Well and remember your password
Do not cut while bitcoin core is running. Make a copy