# Smart Chain Maintenance
# Manually Deleting Blockchain Data
Sometimes it is necessary to manually delete all blockchain data. This should automatically trigger a full re-sync of the Smart Chain.
Users should exercise caution not to delete the
wallet.dat file during this procedure. We recommend that the user make frequent backups of the
wallet.dat file, especially before deleting files from the data directory.
To erase all synced blockchain data, the following files should be deleted from the
# Files to Delete
# Default Location for Files