Bring up the properties of the system drive. On the general tab, choose the disk cleanup button. After it has finished scanning for files to remove, tab to the cleanup tab, then move to the more options tab. Here you will find the options to cleanup unwanted software, and restore points. If you choose the programs and features cleanup button, it will take you to programs and features where you can uninstall unwanted software. If you choose, system restore and shadow copies cleanup button, it will remove all but the most recent restore point.