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@PATAX wrote:

I thought it automatically saves it every 10 minutes or so the so-called automatic backup?

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It does, to save you if the program crashes, but if you tell it not to save, it doesn't. 

I make changes to returns all the time to see what would happen if someone didnt have a dependent or had soc security income, then when I exit I choose NO, because don't want it to save any of that.