Win8 how to quickly clean up system garbage

The operation method is as follows:

1, open the desktop of the "Computer" icon, select a good system in the partition, and then the right mouse click Properties, and then turn on Disk Cleanup. The system is then automatically carried out and the files that can be cleaned are displayed. Wait until the scan is complete, and then click "Clean System Files";

2, then will be scanned again, at this time to select all, which appears in the "Previous Windows installation" is actually windows.old inside the content;

3, click OK then start to clean up, after cleaning up you will find that the free space of C disk is really a lot more.

Generally in the process of upgrading the old version of the system, if there is no format partition, then will display a Windows.old folder, as long as the folder to clean up will make a lot of space to ensure that the system runs more efficient.