Go to ‘My Computer’ and determine which partition you want to defragment. It is good to start with C drive, as it carries all the program files.
Right click on the drive you want to defrag, and select properties.
A new small window will pop up, having plenty of options, like Disk Cleanup. Look at top of the window, where you will find five different options, such as General, Tools, Hardware, Sharing, and Quota. Select Tools.
There are two major options in this menu, Check Now, and Defragment Now. Click on the second one.
Now you have a separate Defragment page right in front of you. The window will show all available partitions alongside their details. Before clicking on ‘Defragment’ at bottom of the page, make sure you have selected the correct partition.
Click on drive, and it will be highlighted that means that you have accurately selected the drive. Push the button, and the procedure will automatically start.
It may take several minutes, depending on the size of your hard drive. Disk Defragment will describe the entire procedure in details. The portion in green colour are unmoveable files, whereas the while portion is for the free space.
Once the defragmentation is done, the computer will come up with a message to confirm. Use the same procedure to defrag all your partitions.