Windows Backup and BitLocker can be used to encrypt and backup data on Windows.Software like Cryptomator and Veracrypt can be used to encrypt files and folders on any platform.Various tools like Borg, Rclone, Kopia, Veeam backup, Backblaze B2, Crashplan, etc., can encrypt and upload data to cloud storage providers.Manually storing files on encrypted cloud storage providers like Proton, Tresorit, Filen, Crypt.ee, Koofr, Icedrive, etc., is another option.