I actually have two questions regarding backups to my WD My Passport 4TB External Hard Drive (WDBYFT0040BYL-WESN).
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I’ve been using it for a year to backup my Windows 10 PC as well as another external HD. I use the included backup software, which is WD Backup. It seems to be working fine, but the 4TB drive is at 30% full and that percentage has been growing. I realize the space used depends on how much I’m backing up and how much I’m adding each day. My question is whether the WD Backup is incremental or not?
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After every backup, I get a warning message telling me there were files that were not backed up. These all appear to be Windows system-type files. Do I want these backed up? If NOT, is there a way to exclude them (without individually selecting each and every one of what appears to be hundreds)? If I should be backing these up, is there a way to make WD Backup include them?