Andrew is having so much trouble with Windows that he calls it the "10th circle of hell." He installed it so that he'd have the free upgrade before the July 29th deadline. His search has disappeared, the Start menu stopped working, along with other problems. What can he do to fix all this? The problem is that Windows 10 has architecture from previous versions going all the way back to Vista. It hasn't been built from the ground up. So because of its age, it has issues. Leo recommends downgrading back to Windows 7. It's mature, solid, and refined to the point where it's a better option.
Otherwise, Andrew can update all of his hardware drivers by going to the hardware manufacturer directly. They may have a better driver that's more up to date than the Windows 10 driver.