You turn on this computer, you get the image attached here ("error message", "click OK to restart").  You click OK or "x" and it restarts, back to the same screen, and this repeats endlessly - same error message.  No other function whatsoever.  This is the worst purchase experience I've had - after hundreds of purchases from Amazon.  How could they even send such a product?  Speechless.  Could I trust Amazon again?!  I've been a loyal customer for decades, and a Prime member...this is absolutely disgusting.  No words could describe the extent of disappointment.