How do I open and use the Disk Cleanup feature in Windows 8?

1, access to the Control Panel, click "System and Security." As shown in the following illustration:

2, enter the system and security interface, click on "To defragment the hard disk." As shown in the following illustration:

3, select the drive, click the "Analysis" button, after analysis, click on the "Optimization" button, completed to complete the disk defragmentation. As shown in the following illustration:

4, click the "Settings" button, you can enter the automatic optimization of the driver interface. As shown in the following illustration:

5, click the following buttons to change the optimization frequency. As shown in the following illustration:

6, click to select the drive you want to optimize regularly.

7, about free disk space function, first, click "Free disk Space", the following figure:

8, first select the file to delete, and then click "Clean System Files", and then click "OK" to complete the operation.