Backups are the primary way to preserve data. On smartphones, backups are handled automatically by the OS. Windows lacks a convincing backup app; numerous third-party tools are available, some of which feature strong encryption. Computer backups may contain valuable evidence that can be useful during an investigation – if you can do something about the password. Ref https://blog.elcomsoft.com/2021/12/digital-evidence-in-encrypted-backups/
