I have a 1 year old, HP Pavilion AMD A-10, Windows 10, 64 bit, 8 GB RAM, and a 1 TB Hard Drive. After 2 minutes my Hard Drive usage goes down to almost 0. After 5 minutes, right now, when I look at Task Manager my Hard Drive is fluctuating between 5%-8%.
The Microsoft Store installed Windows 10 on my laptop. The laptop first after the install was staying at 100% for 10 minutes, and then would go down from there. They kept it for 1 week. After I took it home, it was going at 100% for 10 minutes and then go down to the 5%-8%. Doing that Google trick as the 1st poster suggested lowered the 100% to 2 minutes, and then it drops almost to 0%.