Now, when it comes to the backup process, it's important to understand that the backup software needs extra space to process and store the backup files. This is because the backup process involves compressing and potentially encrypting the data, which can result in larger file sizes than the original data.
Additionally, EaseUS Todo Backup requires some free space on the destination drive to create temporary files during the backup process. This free space is essential to ensure smooth operation and avoid potential errors.
With 799GB used on your internal SSD, it's possible that the 931GB capacity of your external HDD is not sufficient to accommodate the compressed backup files and the required free space. Therefore, the software prompts you for more backup space.
To resolve this issue, you have a few options:
1. Check if there are any unnecessary files on your internal SSD that you can remove, temporarily reducing the amount of data you need to back up.
2. Consider using a larger external HDD with more capacity to ensure ample space for the backup process.
3. Adjust the backup settings in EaseUS Todo Backup to exclude certain files or folders that are not crucial for your backup. This way, you can potentially reduce the size of the backup files.
4. If you don't want to invest in a larger external HDD, you may consider backing up your critical files manually by copying them directly to the external drive instead of using backup software.