If I perform a full backup, using Windows Backup on a Windows 7 system, I understand that it creates a single zip of the entire backup.
But if I then perform a later backup, I understand it is an incremental backup, i.e., only the files changed or added or deleted since the full backup are affected.
But does the incremental backup affect the original zip file? Or does the incremental backup create a new zip with the changed files?
It is important that incremental backups not affect older backups, because if newer files are corrupted or hacked or maliciously encrypted, I don't want my original backup files lost.
Can't find anything in Microsoft documentation that answers this. Thanks for your time.