最简单的方法是用磁盘清理工具清除临时文件和你不再使用的储存程序。
The simplest way is to use a Disk-Cleanup tool to remove temporary files and in store programs that you no longer use.
要求个安心，你应该使用一个安全清除文件的工具，用它清除整个磁盘。
For peace of mind, you should use a secure file-wiping utility and erase the entire drive using it.
一款磁盘清理工具，可以通过清除硬盘中的垃圾数据，临时文件等来获得更多的剩余空间。
A disk clean-up tools, data can refuse to remove the hard disk, such as temporary documents to obtain more space left.
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