The computer worked fine for  few days, then it did a diagnostic testall on its own. It reported no problems with everything ok. Howeverit would no longer boot up, even after trying just about everything thetrouble shooter recommended,including a reset and re-installation ofwindows 10  Tech Support recommended I return it for replacementwhich i did.  I requested a refund, and I will reorder a more expensivemodel of Dell.  The unit received was totally cleanSupport was immediate with their responses and they werevery kind and helpful. I recommend this company highly.