To make sure your Bitcoin Core wallet is up-to-date and secure, you should sync it with the Blocknet blockchain. This is where all bitcoin transactions, accounts, and data are stored. This is a good way to increase your security, but you must consider the minimum system requirements of your computer. You should also be aware of potential issues when synchronizing your wallet.
The first time you run the Bitcoin Core client, it will download a multigigabyte file of the bitcoin block chain. This process can take up to two days. Alternatively, you can use a BitTorrent client from the SourceForge website to download only a portion of the blockchain.