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在本文中：
清理磁盘
删除临时网络文件
删除重复文件
相关文章
参考
电脑用久了，磁盘里积压的无用文件、临时文件或重复文件就越多。这些文件会占据大量硬盘空间，导致计算机运行速度缓慢。删除和整理这些文件能增强电脑性能，为新文件腾出存储空间。
步骤
方法 1
方法 1 的 3:
清理磁盘
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1
打开“我的电脑”。右键点击你想要清理的磁盘驱动器，选择菜单底部的“属性”。
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2
选择“磁盘清理”。它位于“磁盘属性菜单”中。磁盘清理是Windows系统自带的清理功能，允许你删除电脑中无用的文件。
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3
找到需要删除的文件。你很可能想要删除类似临时文件、日志文件、回收站中的文件和其它不重要的文件。点击文件名称旁边的复选框来选中它们。[1]
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研究来源
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4
删除无用文件。选中目标文件后， 选择“确定”。接着会出现一个提示窗口，询问你是否确认操作。点击“是”。
可能有一些你想删除的系统文件没有出现在磁盘清理菜单中。你可以在磁盘清理窗口底部的“清理系统文件”寻找它们。
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5
前往“更多选项”。点击“更多选项”选项卡，然后继续往下看，找到名为“系统还原和影子拷贝”的一项，选择“清理”。整个过程需花费几分钟才能完成。
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6
完成。现在，你已成功删除无用文件或临时文件，计算机的运行速度应该会变得更快、更顺畅。你可以看一下清理磁盘腾出了多少空间，前往计算机，选择硬盘驱动器，窗口的底部会显示硬盘的用量和可用空间。
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方法 2
方法 2 的 3:
删除临时网络文件
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1
前往“Internet 选项”。点击“开始”图标，选择“控制面板”，然后选择“网络和Internet”。当你访问特定网站时，会积聚大量临时网络文件。这些是浏览器的缓存数据，能保存网页内容，比如视频和音乐。这样当你再次访问网站时，能加快载入速度。这个方法会教你删除临时网络文件。
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2
选择“常规”选项卡。点击“浏览历史记录”下方的“删除”按钮。接着会弹出窗口，询问你是否确认删除这些文件。选择“删除全部”，然后点击“是”。[2]
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可靠来源
Microsoft Support
前往来源
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3
点击“确定”。这会删除电脑上所有临时网络文件，腾出磁盘空间。
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4
完成。完成操作后退出程序，查看刚刚腾出了多少硬盘空间。你可以前往计算机，选择硬盘驱动器，窗口的底部会显示硬盘的用量和可用空间。
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方法 3
方法 3 的 3:
删除重复文件
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1
选择一个查找重复文件的程序。有多种应用程序能查找并删除硬盘里的重复文件，腾出可用空间。几款备受欢迎的程序有dupeGuru、VisiPics、重复文件查找器和免费版的“重复文件清理器（DigitalVolcano）”。[3]
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研究来源
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2
打开应用程序。程序的窗口里会显示你放入的待扫描的文件和文件夹。输入文件后，选择“扫描”。
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3
删除重复文件。当程序扫描完文件后，会显示重复文件的位置。选中这些重复文件，按下“删除”键来删除它们。[4]
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研究来源
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4
完成。扫描完目标文件夹后退出程序，并查看刚刚腾出多少硬盘空间。你可以扫描两到三个文件夹后，再查看释放了多少空间。前往计算机窗口，点击硬盘驱动器，硬盘空间和用量会出现在窗口的底部。
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小提示
你并不需要每天清理电脑中无用的文件，可以一个月一次，或在感觉电脑运行缓慢时再清理电脑。
网络上有成千上万种应用程序可以帮你清理电脑垃圾。查看www.tucows.com网站和其它相关软件网站，寻找安全可用的清理工具。
你也可以下载应用程序帮你分析磁盘空间，了解哪些文件或程序占据了大量磁盘空间。
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警告
在删除重要文件或私人文档时要格外小心。如果你不确定操作是否无误，在清空回收站之前再次检查文件，以防删除重要文件，造成不可挽回的损失！
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