Bitcoin Core Wallet.dat _verified_ May 2026

wallet.dat

The file is the primary data file for the Bitcoin Core client, containing the critical keys and metadata required to access and spend your Bitcoin. It serves as a personal digital vault; losing this file without a backup is equivalent to losing physical cash. 1. Core Functions and Contents

1. Encrypt your wallet immediately.
2. Backup to three locations (USB, external drive, paper seed).
3. Test your backup by restoring it on a secondary computer.
4. Update your backup if you create more than 100 new receive addresses (though HD wallets have reduced this risk).

8. Advanced: Sweeping vs. Restoring

Creating a New Wallet

• wallet.dat (Your primary wallet)
• blocks/ & chainstate/ (The blockchain data)
• bitcoin.conf (Configuration file)

• Run Bitcoin Core → Help → Debug Window → Information → "Datadir"

Step 1: DO NOTHING DRASTIC.

Do not delete the file. Do not reinstall Bitcoin Core. Bitcoin Core Wallet.dat