[Help please] What is a good free, open-source, or low-cost computer backup program?

My hard drive size is roughly 3.5Tb (out of 6Tb total size). It won't get much bigger. I use a 5TB portable hard drive for backups.

I am looking for a file backup program that can backup new or changed files, and won't need to clone the entire hard drive again for each backup, as this process takes hours and hours.

Any suggestions appreciated.

Thanks peeps :marseyblowkiss:

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Prayer and hopeful thinking is by far the cheapest backup solution

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Tried that, doesn't work :marseyitsover:

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it didnt work for the yes campaign too :marseysmug:

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