The idea that deleting files doesn’t truly delete the data in them is, for the most part, true. In order to truly secure your data, you’ll need to perform an overwrite on deleted files so information cannot be recovered by bad actors. This is especially important if you’re planning to sell or dispose of an old device. For Windows devices, you can use the in-built Cipher tool to do this. Simply open the Start menu and type “cipher” into the search bar to find this in the command prompt.