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iOS8 adds a new quick contacts feature to the app switcher (you know, the view when you double-press the Home button) but not everybody is thrilled with it. If you want to hide your frequent contacts from this view, you can do it easily in the settings.

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With iOS 8, Apple added a way to see which apps are draining your battery the most. This includes apps that drain your battery in the background — something that’s possible on iOS thanks to iOS 7’s “background refresh” feature.

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Your smartphone — and other devices that use Wi-Fi — broadcast a unique number when they search for nearby Wi-Fi networks. A device’s unique MAC address is sent along with “probe requests” that search for nearby Wi-Fi networks.

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Windows doesn’t offer a built-in way for users to make a window always-on-top. There are many third-party tools for this, but they’re often bloated and clunky. Some just don’t work well on the modern 64-bit version of Windows.

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When typing on an Android device, your spelling is checked automatically and replacement words are suggested. If you don’t select a word in the list of suggestions, a default word is used to replace what the system things is a misspelled word.

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Linux’s GRUB2 boot loader can boot Linux ISO files directly from your hard drive. Boot Linux live CDs or even install Linux on another hard drive partition without burning it to disc or booting from a USB drive.

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If you have multiple hard drives connected to a USB hub, does copied data move through the computer first or directly through the USB hub itself? Today’s SuperUser Q&A post has the answers to a curious reader’s questions.

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If you have ever wondered why your Mac seemed to slow down and then opened up Activity Monitor, there’s a good chance you might have seen the installd process sitting at the top of the CPU usage view. So what is it?

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You probably shouldn’t update your BIOS, but sometimes you need to. Here’s how to check what BIOS version your computer is using and flash that new BIOS version onto your motherboard as quickly and safely as possible.

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Even with the advances in Wi-Fi routers it’s still possible you have a dead spot or two in your house (and if you have an older router it’s likely you have entire portions of your home with a poor or non-existent signal). D-Link’s DAP-1250 offers a dead simple and low-profile way to extend the reach of your home network.

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Private browsing allows you to surf the web without saving any information about your browsing and download history, cookies, form data, or search history. Browsers available for PCs have provided ways of browsing privately, but what about private browsing on a phone or tablet?

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Microsoft’s Windows To Go feature installs Windows as a live system on a bootable USB drive. It’s officially only for Enterprise editions of Windows, but we’ve found a way to do it with any edition of Windows 8 or 8.1.

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There is no doubt that today’s web pages are full of rich content and use more bandwidth to fully load up, but would using a text-based browser instead of a GUI-based one make a significant difference in reducing network traffic? Today’s SuperUser Q&A post has the answers to a curious reader’s question.

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If you are writing a batch file and you don’t want to continue until somebody presses a key, you can do it really easy with the timeout command.

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