FAQ - How to backup your Wallet
How to make a backup of your wallet
Option 1:
In the Wallet UI: Go to File > Backup Wallet and store the file named as: wallet.dat in a secured location
Option 2: Manually copy the wallet.dat file:
Windows: %appdata%/rpicoin/wallet.dat
Linux: ~/.rpicoin/wallet.dat
Raspberry Pi: ~/.rpicoin/wallet.dat
OSX: Macintosh HD/Users/YourUserName/Library/Application Support/Rpicoin/wallet.dat