This article explains how to defragment your Windows computer. Instructions apply to Windows 10, 8, and 7.
How to Defragment Windows 10 – How to Defragment Your Hard Drive – FASTER Laptop! – Free & Easy
Before you defragment your computer, you need to take a few steps. Read this entire procedure before using the defragmenter.
Make sure you back up your work to an online backup service, a second local hard drive, an external hard drive, a flash drive, or a CD or DVD.
Make sure the hard drive is healthy. Use CHKDSK to scan and repair the drive.