1. Go to My Computer. Highlight the disk that you want to defragment and right click, select Properties. Under Tools tab, choose Defragment Now.
2. Select which disk to defragment, right click and select Defragment.
3. Wait the defragment process to finish. The process will take time based on your computer specification. Once the defragment is done, a box will pop up like below picture.
4. You can also view the defragment details via View Report.