Yes, there are several ways to backup your desktop wallet.  Create a seed phrase - Most desktop wallets won’t let you recover your password if you lose it or forget it. But they will give a 14-word randomly generated phrase that can be used to recover your account. Text files - Some desktop wallets give you the option to export your security keys into a text file. Make a paper copy - It’s really easy to do, just disconnect your computer from the internet, print out the file with your security keys, and keep them somewhere safe.