My Passport fills up and should not

My Passport 4gb external hard drive with cable fills up when running full backup of my computer Dell Windows 10 when running Acronis True Image for Western Digital. I only have about 746GB to back up. It must be doing duplicates or some other problem. How do I stop that? I just want to backup only files that changed. Is more than that happening?

Hi @AlanK,

Please refer to the article Acronis True Image for Western Digital Backup Methods:
https://support-en.wd.com/app/answers/detail/a_id/32060

For more information, please check the article Acronis True Image for Western Digital Online User Guide and Solutions:
https://support-en.wd.com/app/answers/detail/a_id/32073

I find Acronis too difficult and very slow. I prefer to use WD Backup. I’m only backing up my home documents, photos, and videos.

Where are the links for instructions for WD Backup and the latest download of it? Thanks. Alan.