A known bug in Windows 8 and 10 can cause a search loop that can be the cause of your high disk usage. To temporarily stop the Windows Search facility and see if it improves your disk issue, open an admin prompt and enter the command: net.exe stop “Windows search”. This will stop Windows search from running until the next time Windows is restarted
if u still using HDD, u should upgrade to SSD cos SSD price now didn't cost that much
u can also only use SSD for System file and still use old HDD for non competitive game