If your hard disk is getting full, you need to free up disk space to install the service pack.
In this tutorial we are going to learn How to Free Up Disk Space in Windows 7. Please go through the step by step guide below and watch the video for clear understanding.
The total size and available free space appear in the details pane at the bottom of the window.
This tool removes temporary files, empties the Recycle Bin, and removes a variety of system files and other items that you no longer need