Installed windows 7 and then replaced with windows 8, in both cases drivers are not supportable. window 8 do not work properly and crashed within 15 days, usb driver never works with these os. Finally, installed windows 10 which was recommended by hp care but still problems system is not working properly like few drivers and software never support this laptop for which I have bought this product.
manufacturing defects are also there on the screen but HP care has not responded well and closed case ID totally wastage of money