A desktop wallet is a program for storing cryptocurrencies that’s installed on a computer. The owner of the desktop wallet has complete control over it. They can create a wallet address for sending and receiving crypto, store private keys, manage their balance, etc. Similar to assets in cold wallets, cryptocurrencies in desktop wallets are kept offline, and thus they can’t be hacked. However, it's always important to keep your device safe. If someone gains control of your computer physically or through malware, they can also gain access to your desktop wallet.
To get a desktop wallet, you just need to download software to a laptop or desktop computer. As the wallet owner, you’re the only one who can access your wallet and you can manage funds using only that particular device.