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The iPhone has a hidden “field test” mode that shows all kinds of technical details about signal strength, cell towers, and more. Most of it is not very useful to the average person, but you can make it show you your phone’s actual signal strength instead of just how many bars you’re getting. And that can be useful.

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Microsoft Office lets you encrypt your Office documents and PDF files, allowing no one to even view the file unless they have the password. Modern versions of Office use secure encryption that you can rely on–assuming you set a strong password.

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Philips Hue is a really cool Wi-Fi-enabled lighting system that allows you to turn on and off your lights right from your smartphone (or from other smarthome-controlling devices, like the Amazon Echo). It’s one of the first steps in turning your house into a smarthome of the future. Here’s how to set up your Philips Hue lights using the new Philips Hue app.

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Plex Media Server is a user-friendly way to store all your movies, shows, and other media in one place–and make it accessible from any device, whether you’re at home or on-the-go. If you’re looking for a no-headache way to watch your movies anywhere, this is it.

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There are many ways to learn the location of a computer from its IP address, but how do you go about it if you decide to use the command line to find the information? Today’s SuperUser Q&A post has some helpful suggestions to help a reader find the information he wants.

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If you plan on selling your PlayStation 4, here’s how to reset it by deactivating your PSN account and deleting all of the files on the console to put it back into factory condition.

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Think you know the answer? Click through to see if you're right!

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Vibrations are a great way to alert you when someone is calling or texting without notifying everyone else around you. The only problem: you may not know who is contacting you unless you pull your iPhone out of your pocket.

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When you first set up a new Chromecast, you have the option to give it a name. This is how the Chromecast identifies itself on the network and to casting devices, which is how you know which unit you’re casting to. But if your Chromecast started life as “Living Room Chromecast” and you moved it to another room, it only makes sense to change its name. It’s a quick and easy process—here’s how to do it.

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When you delete emails, tasks, calendar items, or notes in Outlook, they are moved to the Deleted Items folder. This folder is not emptied until you do it manually–at least by default. If you want, you can have Outlook empty this folder automatically when you exit the program.

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OneDrive may primarily be a cloud syncing service, but even if you don’t use OneDrive as your primary cloud storage, it has one killer feature: with it, you can remotely access any file on your PC, even if that file is not in your OneDrive folders.

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Windows can’t normally read Mac-formatted drives, and will offer to erase them instead. But third-party tools fill the gap and provide access to drives formatted with Apple’s HFS+ file system on Windows. This also allows you to restore Time Machine backups on Windows.

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Supervised Mode is intended for organizations, but you can enable it on your own iPhone or iPad. Supervised Mode gets you a few extra features like hiding included apps, and always-on VPNs.

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Some companies think they’re increasing security by disabling your ability to paste into form fields, such as the password field. But in reality, all they’re doing is frustrating users–and probably decreasing security by blocking password managers. Here’s how to solve this annoyance in Chrome and Firefox.

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After every Uber ride, you can rate your driver out of five stars based on how good or bad the ride was, but you may not know that Uber drivers also rate you as a passenger. Here’s how to view your Uber passenger rating.

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Think you know the answer? Click through to see if you're right!

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You Apple ID password is a particularly important one, so it’s vital that you not only keep it very secret, but also change it from time to time–or at least as often as needed.

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Have you ever turned on the Caps Lock key ACCIDENTALLY WHILE YOU’RE TYPING? Or turned off the Num Lock key unintentionally and then tried to use the number keypad? No worries. There’s a setting in Windows that can notify you with a sound whenever you press one of these keys.

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The Windows Registry offers a treasure trove of possible tweaks for your PC, but it’s a complicated structure to work in. You can make things a little easier by bookmarking your favorite locations.

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Here’s something you may not know: that HDTV that you love so much probably doesn’t show the whole picture on its screen. In fact, up to five percent of the picture can get cut off around the edges—this is called overscan. It’s old technology that’s left over from the CRT (cathode ray tube) televisions of yesteryear. Here’s why it existed in the first place, why it’s still used today, and how to (hopefully) turn it off on your TV.

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