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Mac: “Downloaded .app is damaged and can’t be opened” Error Solved

Mac .app Installation Error
Mac .app Installation Error

Mac OS X security by default does not allow all .app extensions to be installed. At worst, it will throw an error message that the app “is damaged and can’t be opened.” This error makes you believe that the downloaded app is corrupted and that there is no application that could let it open. However, sometimes this is just a security issue that can be corrected.

PowerPoint: Filter Slides for Different Audiences

powerpoint custom slide

If you typically create several versions of one PowerPoint presentation to target the talk to different audiences, the Custom Show feature can be very helpful.

Facebook Page: Prevent Users From Posting Photos or Videos to Timeline

facebook argument feature

By default, everyone can post photos and videos to your page’s timeline. This can potentially lead to your having inappropriate content on your timeline and within your comments. Luckily, it is possible to disable this feature.

Windows: Find an IP Address of a Printer on a Network

network printer IP

Trying to find the IP address of a networked printer can be frustrating. Using these techniques, you should be able to locate it from your Windows computer.

Twitter: Back Up Your Tweets with Your Official Twitter Archive

how to backup twitter featured

Are you worried about losing your tweets on Twitter? Being a Twitter user myself, I am concerned about my account. In fact, I like to have a backup of all my personal digital data on the internet, including my tweets. To back up your tweets, you no longer need to depend on any third-party backup tool. Now, you can download your Twitter archive and back up all your tweets. This tutorial explains how.

OS X Mavericks: Mastering the Power Button

dialog box for shutdown a mac

Prior to OS X 10.9, the power button would display the shut down options. Now, the default action of the power button is to just turn off the screen. How can find the restart, sleep, and shut down choices again?

Beginner Photography: What is Depth of Field?

DoF Article
DoF Article

One of the secrets to professional-looking photography is mastering exactly how much of your photograph is in focus. Controlling the depth of field (DOF) allows you to set which objects are focused and which are blurred. This tutorial explains depth of field with examples and describes how to utilize this essential skill with your camera.

iOS 7: Create, Edit, Delete, Manage Playlists and Songs

animated iphone gif

Although using iTunes is ideal for managing music collections on your device, there may be times that you need to create a quick playlist on your device, or you might want to delete unwanted songs from your collection when you cannot access your computer. Luckily, it is possible to do these tasks on your device, without any third-party apps. Continue reading to find out how.

Facebook: How to Hide Your Friends List

facebook hide friends list

Privacy has always been a hot topic when it comes to social networking, especially on Facebook. Hiding your Friends List is one the most important privacy settings in your Facebook account. Because Facebook keeps updating its privacy settings to keep its one billion (and counting) users happy, you might have had difficulty figuring out how to do this. This tutorial explains how.

PowerPoint or Word 2013: Crop or Fit Images into Shapes

word powerpoint images shapes

When you edit a document, there may be times that you want to show only a small portion of an image or fit an image into a shape to suit the overall theme of the document. These tasks can be done inside your Office programs, without using any third-party software. Continue reading to find out how.

Sony Xperia Z1: How to Capture a Screenshot

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sony screenshot featured

Being able to capture a screenshot of your phone’s current screen can be very handy for creating tutorials, saving data, or recording funny moments. Many Android devices that have hardware keys grab screenshots by holding the Home and Power buttons together for 3 seconds. However, the Sony Xperia Z1 lacks a proper Home button so you will need to follow these steps to get a screenshot with this device.

Google Chrome: Clear History and Delete Your Browsing Data

clear browsing data chrome

If the computer you are using is accessed by people other than you, you probably do not want to disclose your browsing habits. By emptying your cache, deleting cookies, and clearing history, you can cover your tracks. Chrome makes this easy.

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