Don't have one, never used one.
I've read prior discussions here, and am aware there is (as with all other programs) a wide variety of effectiveness and also a bit of danger for those, like myself, who are less than registry-literate.
I am not extraordinarily adventuresome prowling the interweb; I don't take too many risks.
I am interested, nonetheless, and wonder if there is a free program worth a download, and what people think, generally, about using it/them?
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