defragmentation process in computer

above video i am showing about defragmentation process in computer

just follow these commands for defragmentation
1) Open This pc or my computer and select any drive and right click on it
2)you will see properties options click on it and click the tools you will see a defragment drive option
click the optimize button

3) Choose the drive (ex: i want to defragment the E drive so i choose the E drive ) click on optimize button

4) After certain time defragentation process will complete. 

thankyou