Installed Windows 7 and then replaced with window 8, in both cases drivers are not supportable window 8 do not work properly and crashed within 15 days, USB driver never works with this OS,
Finally installed Windows 10 which was recommended by the HP care but still problems system is not working, properly like few drivers and softwares never support this laptop for which I have bought this product. Manufacturing defects are aslo there on the screen but HP care has not responded well and closed case id, wastage of mony.