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Third, Watch the video to see how to dumpprivkey of your address without walletpassphrase or password to view the private key - youtu dot be/C_yNMPnnqS0?si=8Ukr9VPA1c-igz3P
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Do not trust what @Jordan19ward write. Title of that youtube video is "How to Open wallet.dat files without Passphrase or Password│Getting Private key of Encrypted wallet". In addition, the video provide download link for Bitcoin Core which leads to their own website.