My laptop came with a hard disk SMART error and a few hot keys not working (microphone mute, screen brightness -, screen brightness +). Interestingly, the laptop came with an after-market sticker cover over the mousepad. I returned the laptop for a new one.The 2nd laptop did not have a smart error, but the same hot keys were not working and occasionally the touchpad mouse would go unresponsive (I could still use the joystick mouse). I updated the BIOS & drivers but the issues continued. The solution was to reboot the BIOS with UEFI (originally set to Legacy), revert to factory settings (with Windows 8 Pro) using a disk sent to me from hp support, at this point--update BIOS & drivers using a disk from hp support, then install Windows 10, then activate Windows 10 Pro. Now everything seems to be working fine. (Thank you HP support team for all the help!)Conclusion: Unless you are tech savvy, these small quirks will be a headache to straighten out. Now that it's working properly, I really enjoy it. I would not have chosen this laptop if I knew the problems beforehand.