Apple has issued a firmware update for its latest Retina MacBook Pro systems that adds support for the new PowerNap feature in OS X Lion.

PowerNap allows the system to save energy by maintaining Sleep mode but still allow the system network access for updates and synchronization, as well as allowing backups to happen in the background. This feature is only available on the 2011-2012 MacBook Air systems and in the MacBook Pro with Retina Display; however, these systems did require a firmware update to use the new feature.

Apple issued the required firmware updates for the MacBook Air systems when Mountain Lion was released, but was still working on the update for the MacBook Pro system so owners of these systems have not been able to use PowerNap feature. Today Apple released the firmware for the Retina MacBook Pro, so after applying it users should see a PowerNap enabling option in the system's Energy Saver preferences.

When applying the update, be sure to follow any onscreen instructions, as interruptions in a firmware update can result in a broken and unrecoverable system. Be sure to back up your system fully before applying the update, and have your system attached to a reliable power source. The update should be available through Apple's Software Update service (in the Apple menu), but can also be downloaded directly from the update's Web page.

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(Credit: InstaWifi)

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InstaWifi lets you share access to your wireless connection by using NFC tags or a generated QR code. This is a great tool for business owners who have customers or office guests who want to connect to their wireless connection. It's definitely a faster option than giving them a password to type in, or keeping said password written down with the potential of getting lost.

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There are few events quite as exciting as the Olympics. With athletes from all over the world competing for their respective countries, it's easy to get excited as you root for your country to win. Obviously, I'll be rooting for my American compatriots, but seeing the drama of each event, no matter who the winner is, can be appreciated by anyone.

This year, the apps for tracking Olympic events are better than ever before, but still not quite perfect. Since NBC is covering the Olympics, it's the only app in this collection that will have live streams of events. Early reports around the Web on the first day of events (Thursday) were that the live streams are not up to snuff. Let's hope they work it out as the Olympics continue.

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The Reuters app has a big colorful picture stream with more info when you touch a photo.

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It looks like you're trying to extract images.

Including images in an Office document can ensure that all relevant data is located in one spot for everyone's convenience. Maybe you need to include a schematic or blueprint diagram to help illustrate a point, or feel photos documenting a problem or demonstration could give your work a bit more power. In any case, the easy part is putting the images into the document, but what if you need to pull the images out of a file?

Sure you could use a screen grabber for small files, but what about large, high-quality images that don't fit into one monitor's worth of screen real estate? Fortunately, a lightweight and portable tool exists to extract images out of many document formats. Read on to learn how to use it.

Step 1: Download and extract Office Image Extraction Wizard Portable. 

(Credit: Screenshot by Nicole Cozma/CNET)

Step 2: Open the directory the program was extracted to and run Office Image Extraction Wizard. The first pane you will see is a welcome screen for the wizard. Simply click the Next button to move past this.

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Chrome is one of the most popular Web browsers, but sometimes a missing feature can be rather shocking. Automatically deleting things like your browsing and download history, cache, cookies, and even saved form data is missing from Chrome! You could do it manually every time you browse the Web, remember, or get paranoid, but you shouldn't have to.

That's why Click&Clean, a Chrome extension, exists. Not only does it offer more features than the standard check boxes built into Chrome, it also performs actions automatically. That's right, no remembering, lots of being lazy... I mean, doing other things.

First you'll want to install a copy of the Click&Clean extension into Chrome. Once you've done that, it's time to do some configuring so it can automagically work later.

(Credit: Screenshot by Nicole Cozma/CNET)

Click on the new icon in your Chrome toolbar with the C on it. If a new tab doesn't open, and you see a menu instead, click the Options icon.

(Credit: Screenshot by Nicole Cozma/CNET)

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