Secret hacks for Google Play

Google Play just celebrated its fifth birthday, but there’s always something new to learn about the app-and-entertainment store. Robert Irvine reveals its best secrets

Earn credit towards Play purchases

You don’t get something for nothing in this world, but thanks to Google Opinion Rewards (bit.ly/rewards420) you can make easy money for very little effort. Just answer a few quick questions about shops you visited recently or similar topics and the app will reward you with credit, which you can save up to spend on Google Play.

The information you provide in the short, simple surveys about your views and habits is collected anonymously, and you can trade your credit for Android apps, music, films, TV shows and books in just a couple of taps.

There’s usually at least one threequestion survey per week, with rewards ranging from 6p to 60p.

Our guide to WebAssembly

WebAssembly is being touted as the future of the web but you’d be forgiven for wondering what on Earth it is. David Crookes explains all

What is WebAssembly?

WebAssembly (webassembly.org) is a relatively new web standard that has the potential to revolutionise how we use high-performance applications such as games, video players and imageediting software. Rather than making us download and install these resource-heavy apps, WebAssembly offers the potential to run them in your browser with full functionality. Developers say this will make computing far more convenient, with some going as far as calling it the dawn of a new web era.

Kodi: New TV Streaming Sensation

Kodi is one of the most powerful media players that’s ever been released for Windows – and it’s also one of the most controversial. David Ludlow explains how to use it legally

Few programs in recent years have proved as controversial – or as popular – as Kodi. On one level it’s a brilliant music and video player, letting you stream content between computers. If you connect your laptop to your TV with an HDMI cable you’ll also be able to access and watch everything on the big screen of your television.

Kodi – known as XBMC until 2014 – also excels at online streaming. It gives you access to all kinds of add-ons that expand its basic features, so you can watch YouTube, iPlayer, out-of-copyright movies and a whole host of other video content straight from one convenient location. In addition, you can listen to hundreds of radio stations from around the world, view all your photos and stream podcasts.

Start afresh in Windows 10

If you upgraded to Windows 10 from a previous version your PC will probably be bloated with old apps and programs. Mike Plant explains how to restart Windows 10 with a clean installation

How did you install Windows 10? If, like the vast majority of Windows 10 users, you installed it over the top of a previous version – such as 7 or 8.1 – you’ve probably never enjoyed a full and clean version of Windows 10. That’s because installing one operating system over another is similar to wiping a whiteboard with an eraser. Most of what you scrawled on there has gone, but look close enough and you’ll see remnants of what was written there before.

The good news is that Microsoft’s new Refresh tool is there for users looking to make their version of Windows 10 as fresh as if it had come pre-installed on a new computer.

Here, we’ll take you through the process, starting with making a backup of all the important files and information on your PC, before explaining how to refresh Windows 10 and then get it off to the best possible start.

Keep your PC perfectly safe with sandboxing

Wayne Williams explains how to use a sandbox to protect your PC from malicious programs, snoops and more

Sandboxing is a method used to prevent software from taking control of your operating system or making any changes to it. It works by containing the program in a secure and disposable section of your computer’s hard drive or memory. Software running in this ‘sandbox’ is allowed to read data from the hard drive as normal, but it can’t write data outside of the sandbox or make any changes to Windows.

There are several benefits to sandboxing software in this way, such as keeping your system safe from potential malware and letting you try as many programs as you like without worrying about cluttering up Windows or causing problems.

It’s also useful for privacy reasons: if you sandbox your web browser, nothing you do will be recorded on your computer, and bookmarks, cookies, cached pages and browsing history will vanish when you empty or exit the sandbox.