The next thing to check is whether the problem has to do with Windows Search A bug in Windows 8 and 10 results in a sort of “search loop” that causes an increased load on the system drive. Whatever you think of Windows 8 (at Make Use Of, our opinions are mixed), it’s certainly speedy.
Click the Disable button; the Adobe Flash Player entry will be grayed out.
Wait a few moments and then check your Task Manager.
Performance issues related to your system drive should be resolved. You’ll see three options — select the third, Block sites from running Flash, then Done.
On the first tab, Processes, look for the Disk column. Your security software should be able to deal with this, whether it’s a free app or a paid suite.
At the very least, tools such as Malwarebytes Anti-Malware should be able to scan your system drive and detect any problems, although with a heavy load on your drive already this may take a while.
If an AHCI Controller entry is listed, double-click, then open the Driver tab and select Driver Details. Close the driver details box and switch to the Details tab, selecting Device instance path from the drop-down menu.