Yep ! can say that !
i remarked the MS tool give you no result depending on the drive whatever the search index options you give it. Since the last update (months ago) i suspected it.
If you go on MS support web site they just give you....no solution at all expect a auto/solo patch/update that won't install ! ;(
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This little tool work PERFECTLY and its very fast. full with options to customize your search. just one regret: u can't search in the keywords.