Once a week we round up some of the reader emails that come flooding into the Ask HTG inbox and share them with the greater readership. Today we’re looking which files you should be backing up, using your scanner as a copier, and using the iPad as a secondary monitor.

我应该在windows计算机上备份什么？

Dear How-To Geek,

I understand the concept for backing up files and the importance of having a duplicate file if anything happens to my originals, but I’m not so clear on exactly what files I’m supposed to be backing up? Stuff like family photos and tax returns seems obvious, but there is so much other stuff on the computer! Surely some of it needs to be backed up to, right?

Sincerely,

Backup Confused

亲爱的后援，

不是只有你一个人在困惑。复制您/我的文档/文件夹的内容似乎是一个明显的开始，但是没有多少人知道应该备份该文件夹外的哪些内容。您还可以备份各种其他内容，如/AppData/中的应用程序设置、使用本地电子邮件客户端时的电子邮件文件等等。看看我们的指南，你应该在这里备份哪些文件。

我怎样才能用扫描仪作为复印机？

Dear How-To Geek,

I’m a Windows user with a Canon LiDE 110 scanner. It has a bunch of butt*** on it like PDF, Copy, and Email, but they don’t do anything. The thing is, the scanner works fine. I plugged it in the day I bought it, Windows detected it, and I can scan from photo applicati***, etc. I’d really like to use my scanner, combined with my laser printer, as a kind of cobbled together all-in-one printer/copier. How can I get the Copy button to actually copy? Or, if I can’t, how can I set it up so that I can press a virtual button in Windows make copies?

Sincerely,

Copy Craving

亲爱的副本渴望，

当读者在给我们的电子邮件中包含额外（重要）细节时，这总是很有帮助的。你的第二句话真的把事情弄清楚了。虽然您**扫描仪，Windows检测到它没有问题（多年来Windows在这方面的改进越来越好），但它很可能安装了相对通用的驱动程序，并且没有其他软件。这意味着您有扫描仪的驱动程序，但没有使按钮执行其魔术的额外附加组件。

市场上几乎每一台扫描仪都有某种软件包（或从**商网站上获得的软件包），其中包括一个简单的复制功能。在您的扫描仪的情况下，甚至有一个复制按钮。点击佳能网站，搜索您的特定打印机型号，然后下载并安装官方和更新的驱动程序以及附加软件。佳能的扫描仪软件被称为MP导航器前一旦你安装它，你将有权访问硬件和软件按钮进行复制。如果你打开“开始扫描按钮按下”功能，只要应用程序正在运行，按下按钮将根据你的喜好自动执行该按钮的默认操作。

如何将ipad用作辅助显示器？

Dear How-To Geek,

I travel a lot with both a lightweight notebook computer and an iPad. It would be awesome if I could use the iPad as a secondary monitor… I don’t really expect to use it for any heavy lifting or anything but if I could even just put IM windows and secondary documents on it, that would be awesome. Is there someway to achieve this?

Sincerely,

Dual Monitor Dreaming

亲爱的双监视器，

不仅有一种方法可以实现你想做的事情，而且当你有合适的工具时，它是非常容易的。我们建议使用Air-Video，这是iPad最早也是最强大的屏幕分享应用之一。我们将在本指南中详细介绍如何安装和配置它。它应该只需要几分钟的时间来设置，然后你将摇摆你的iPad作为第二个显示器，无论你走到哪里。这里有一个额外的小贴士给你：铰链亚克力展示架（那种你会用来支撑一小块艺术品）只需要几美元，而且非常适合支撑一个iPad作为二次展示。