First hard drive made loud clattering sound.  Case damaged in shipping, made case opening difficult for hard drive access.  Replacement hard drive provided by seller not quite as loud but still noisier than any I have ever had.  Eight and nine year old hardware – not surprised it is noisy.  Only two moving parts in the unit – I think “renewed” to “work and look like new” should warrant replacing moving parts with new.  This purchase has soured me on refurbs, but if I was to buy another, I'd look for bare bones and add new components myself (something I'll probably have to do with this one.)  Price dropped by seventy bucks shortly after I bought mine.  It did not come with the promised Windows 10 CD.  Processor is old 3rd or 4th generation technology.  Nothing fast about mine, but it works.  I've had good luck with refurbished electronics in the past, but now it seems that renewed, refurbished, and used are synonymous terms.Update 10/17/2019.  I endured the noisy, nine-year-old hard drive for as long as I could, and replaced it yesterday with a new Seagate BarraCuda 2TB, also from Amazon, 55 dollars.  Nice not to hear the constant bump-bump-bumping of the hard drive.