I own a one year old Lenovo G510 running windows 10. Similar to this: http://www.amazon.com/gp/product/B00HIYA9ZM?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s00 except I added some additional hardware. My problem is with lag. I click on an application, anything really, blue circle comes up for over a minute. Wait for circle icon to stop spinning, click on another application, same thing. They do open btw. Takes 5 mins. just to surf the internet by the time the laptop boots up and I open my browser. Any ideas? I work with computers so whatever you got.