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Clean your hard disk by removing unnecessary files to speed up Windows

Improving your computer’s performance can just be a matter of giving it a spring clean. Leave the feather duster in the cupboard though, as this housework only requires some deft mousework.Click ‘Start > Computer’ and right-click on the hard drive where your Windows files reside (in most cases you’ll find them in the C: drive). Next, click the ‘Properties’ option to display a small window featuring a blue and purple pie chart. Notice the button next to this labelled ‘Disk Cleanup’ – clicking this will reveal various file categories you can cleanse. 
Clean your hard disk by removing unnecessary files to speed up Windows

Generally any item on the list can be ticked for deletion, but give your Recycle Bin a quick once-over to make sure there’s nothing important lurking inside that might be purged accidentally. Leaving the ‘Thumbnails’ box unchecked is also wise, as this saves your computer the trouble of regenerating image thumbnails when you next view your photo albums. Click ‘OK’ and Windows will commence the cleanup, free some computer hard drive space and make your computer run a little faster now it’s shed some of those extra virtual pounds.
To achieve a deeper clean, click the ’Disk Cleanup’ button next the pie chart again, but switch to the More Options tab. The upper ‘Clean up’ button opens the ‘Uninstall or change a program’ window where you can scour your computer for unnecessary software. Abandoned games, disused printer software and unnecessary web browser toolbars are all worth uninstalling. Back on the Disk cleanup window, the lower ‘Clean up’ button will delete Windows System Restore points apart from the most recent, potentially releasing gigabytes of storage space.

Hands on with Windows 10

As a Windows user, we’re hoping you’ve heard of Windows 10 by now. If not, then it’s the next version of Windows; Microsoft is skipping Windows 9 entirely and going straight to 10. It announced Windows 10 in October and made a Technical Preview version available to download the next day. 
The Technical Preview of Windows 10 doesn’t have every feature of the upcoming operating system, but Microsoft has revealed that over a million people are testing it anyway, and we’re among them.
“It’s been awesome to see so many of you joining the Windows Insider Program and letting us know what you think about the Windows 10 Technical Preview software,” 
Microsoft’s corporate vice president of operating systems Joe Belfiore wrote in a Windows blog post, celebrating the millionth download.
Here at pcprotuts we’ve been getting stuck into the new operating system for a good few weeks now, and here we present our findings. You’ll find out what Windows 10 is really like to use, what we like and what we don’t.
To summarise, we think Windows 10 is going to be a hit. It’s already won our hearts by combining the best bits of Windows 7 and 8, but perhaps the best news is that there’s more to come. 
We expect some new features to be added before its final release around summer 2015, so look out for details of those in the pages of this magazine shortly.In the meantime, let’s take a closer look at what Windows 10 has in store for you…
We expect some new features to be added before its final release in 2015
Hands on with Windows 10

Microsoft tries to strike a balance for every kind of user

Yes, the Start menu is back. Yes, there are virtual desktops. No, the Charms bar hasn’t gone away. And no, we don’t know precisely when Windows 10 will be released or what it will cost. But we’ve seen the Technical Preview of the new operating system, and the word to bear in mind is ‘productivity’.This isn’t the place to look for changes in Explorer or the Control Panel, let alone desktop tools like Paint and Notepad, or Store apps like Music and Video. The Technical Preview is about the core features that are supposed to prove Microsoft can balance touch, mouse and keyboard input without making any users feel abandoned.

Boot it up

There are profound differences between Windows 8.1 and Windows 10, even in this early technical preview. For starters, the installation process has been streamlined. You can get through the entire process without creating a local account on your machine and instead authenticate via your existing Microsoft account. We also like the ability to setup and configure sync settings for Microsoft’s OneDrive file hosting service from the installation itself.
Unlike Windows 8/8.1, Windows 10 boots straight into a traditional looking desktop. This contains all the elements you’d expect, with icons on the desktop and a taskbar at the bottom and a fully functional Start menu. As expected, the Start menu is the default if you use Windows 10 with a keyboard and mouse, but you can keep the full-screen Start screen if you prefer it. Even on the Start menu, you can pin Live tiles in multiple sizes on the right, but on the left you also get the familiar list of pinned and recent apps, with jumplists for files, the search box (which you can also use to run typed commands), and a power button for shutting down or restarting your PC.The search box has all the Windows 8 features, including results from Bing and the Windows store, and a separate Search menu next to the Start button gives you trending topics directly from Bing, too.You can resize the Start menu, although you can only drag to change the height; changing the width means picking a separate setting. This is more familiar for mouse and keyboard users, but it remains to be seen whether Windows 8 users who like touch will find it a step backwards.

 
Snaps, apps and desktops

You can still use [Alt]+[Tab] to move between open windows. As in Windows 8.1, these now include any modern apps you have running, and those now open as windows on the desktop like any other software you’re running, ready to be resized or snapped side-by-side. The new Task View button on the Taskbar is there to introduce the idea of moving between windows to the many Windows users who have never tried [Alt]+[Tab].
There are many more ways to snap windows than there were in Windows 8. If you have a narrow window, the second one can take up all the rest of the space, or you can snap four apps, one in each corner. Windows even shows thumbnails of open windows to help you pick one to snap without rearranging everything.
The [Windows]+[Tab] keyboard shortcut now gives you a view that’s the same as [Alt]+[Tab], except for a button at the bottom for adding virtual desktops, and the list of desktops you already have open. You can use your mouse to pick the set of windows you want to put on screen, and the window you want to start using.
Virtual desktops aren’t new, but they never graduated from a utility to a main
Windows feature because they can be confusing to manage. There’s a subtle clue in the Taskbar to help you; if an app is open but not in the current desktop, it is underlined rather than outlined, and if you click on its icon you go straight to it and the rest of that desktop. It remains to be seen whether that’s enough to avoid confusion, but it certainly signals that Microsoft has power users in mind.

 
Works like a charm

Despite rumours, the Charms bar hasn’t gone away, but you might not see it when you use the [Windows]+[C] shortcut. If you have a mouse and keyboard and the window that’s active is a modern app like the Windows Store, that shortcut brings up a mini Charms menu hanging off the top left corner of the app instead.
This has the three dots that give you any relevant extra commands (labelled as App Commands). These include the Search, Share and Settings charms that are usually on the Charms bar, other useful commands like Play, Print and Project, plus the option of running the app full screen.
If you can’t print from the app, the Print charm on the menu is greyed out. That makes the Charms less touchfriendly, but much more mouse-friendly when you’re controlling an app. That’s exactly what users without touchscreens want; moving all the way over to the side of the screen and all the way back isn’t efficient with a mouse. When you’re controlling Windows – which is what you get when you don’t have a modern app selected – having the Charms and settings bar at the side of the screen is fairly logical. And those Charms are staying around (although probably in a different arrangement with a more logical division of what shows up where) because when the Windows team took tried taking them out, users at Microsoft complained loudly.
That big, friendly sidebar for choosing and changing Wi-Fi options turned out to be really handy and surprisingly popular. This is the Windows 10 experience in microcosm. Microsoft is trying to keep the bits of the modern interface that people like and find useful, but not have them be annoying and intrusive when mouse users are getting things done.

 
The command prompt

At the other extreme from Charms is the command prompt, where you go to run scripts and batch files. In recent years the emphasis has been on the far more powerful PowerShell automation system, but in the spirit of ‘no feature left behind’, the humble command line is getting the same harmonisation as the rest of Windows 10. You can finally use keyboard shortcuts to select a line or a word at a time, and to copy and paste text.
Only a tiny fraction of Windows users may ever use the command line, but Microsoft wants them to be happy as well, and this is the kind of modernisation that’s a decade overdue.

 
New tools

Some of the most interesting features for business aren’t visible in the Technical Preview. These include the ability to upgrade PCs using management tools, and manage them through the same Mobile Device Management systems used for smartphones and tablets. There will also be an enterprise app store that lets businesses manage volume licences for modern apps instead of making users sign in to a work PC with a personal Microsoft account, and separation of personal and business data using encrypted containers. These features will appeal to businesses, but they can’t try them out until the previews of Windows Server and the necessary management tools come along.

 
Integrated Internet Explorer

The preview of Windows 10 only includes a desktop version of Internet Explorer, and it’s not a new one; future updates to the web browser are coming out on their own schedule. That doesn’t necessarily mean the immersive version of Internet Explorer is going away, but it doesn’t make sense to have a separate, full-screen browser when all the modern apps are now just windows on the desktop.
We don’t know what changes there will be to the IE interface, and the Windows team hasn’t yet decided how to handle the different modes of the browser. Having a plugin-free version of the browser is definitely a real security advantage, but unless it’s immediately obvious how to switch between them people will get annoyed and confused. Getting challenges like this right without abandoning the benefits of Windows 8 is where Windows 10 will succeed or fail.

Reinstall Windows

Wiping your PC and reinstalling Windows can be the most effective way to boost it


If you’ve tried clearing the clutter, vanquishing viruses and making  performance tweaks, but your computer is still on a go-slow, it’s time to return it to its former glory by reinstalling Windows. This will delete everything from your hard drive though, so if there are any files, emails or even Internet Explorer Favourites you don’t want to lose, it’s essential to back these up. Take a look at the step-by-step guide below to learn how to do this in a little more detail.
Reinstall Windows

Know your reinstalling methods

There are two main methods for reinstalling Windows, but we’ll start with the most common procedure for computers made by companies such as Dell or Acer. These manufacturers often allocate a small area of your hard drive to store a duplicate of the computer’s original Windows 7 data, which can now be used to overwrite any clogged files. 
To access this preserved copy of this operating system, restart your computer and as soon as it begins to fire back up, repeatedly tap [F8] until a menu entitled ‘Advanced boot options’ appears. Select the ‘Repair your computer’ option and press [Enter]. At this point, the computer’s recovery software may start to kick in automatically. If it doesn’t, continue until you reach the stage where you’re required to select your usual account name from a drop-down list and enter the associated password as per normal. You’ll now be met with a list of various options, but the one we’re looking for activates the PC manufacturer’s recovery software and is normally the last link to appear on the list.
START AFRESH It may sound a little drastic, but reinstalling Windows 7 can give your poor old PC a real boost
It’s now a matter of following the specific instructions for your recovery program, but if given the choice between preserving new and changed software or wiping everything back to exact factory specifications, plump for the latter. This way any undesirable digital intruders which may have set up camp on your computer over the years will be evicted. This is the first reinstalling method.


Reinstalling with a disc

The second method for reinstalling it requires a genuine Windows 7 installation DVD, which you may have been given if your PC was built by a low-volume manufacturer. To use this disc, first back up your files then restart your computer, but instead of pressing [F8] on start-up, tap [F12] to load the DVD. When prompted, click the large ‘Install now’ button and continue until you’re asked which type of installation you want. Pick the ‘Custom (advanced)’ option and you’ll now have the choice of where to install it. Choose the partition where the operating system is currently installed (usually the C: drive) and click the ‘Drive options’ link beneath. Double-check you’ve highlighted the correct partition, select the ‘Format’ option and when this finishes, click ‘Next’ for the reinstalling process.You’re nearly ready to enjoy your newly-restored, fighting fit PC, but there are a couple more hurdles to clear. During the set-up process you’ll have to enter your very own product key. This is usually found on a sticker attached to your computer, or on the original packaging of your Windows disc. Finally, once you’re back online, be sure to regularly visit the Windows Update web page to apply essential security updates and add any missing hardware drivers. And this is the second reinstalling method.

Save money by running your PC more efficiently

How mach power do PCs use?

Most desktop computers use between 65 and 250 Watts. Laptops are less demanding and use between 15 and 45 Watts. LCD monitors can use 20 Watts while they're switched on. and even energy-efficient models can still use 2W while on standby. If you're still using an older CRT (cathode ray tube) monltor. It could be using as much as 80 Watts. The more work your PC is doing. the more power it will consume. 50 if you're using lots of peripherals or playing games. your power drain will be greater than if you’re just doing a bit of typing. If you're accessing the intemet. you'll be using more power because more devices and components are being used to send and receive the data.
Save money by running your PC more efficiently

Monitor your energy use

The figures above are just a rough guide.
To get a more accurate measure of how much electricity your PC uses. attach an energy monitor to your mains supply cable. This is very easy and perfectly safe. and you'll be able to see the power consumption of your computer the moment you turn on your PC. You'll also be able to work out how much electricity individual items use - such as your screen or printer. Some energy suppliers provide free monitors with certain tariffs. but you can buy one yourself. OWL (www.theowl.com) has a range of models, priced from around £28. Once you've measured your electricity consumption. you can work out how much you’re paying. See our Mini Workshop below for instructions on how to do this.

Speed up boot up

The main reason we fail to switch off our computers is that it takes a frustrating amount of time to start them up again. Reducing your PC's boot time will encourage other computer users in your household (usually the ones who don't pay the electricity bill) to switch the PC off when they've finished using it.
Start by uninstalling unwanted programs and removing clutter using a program such as CCleaner (www.piriform.com). Then defrag your hard disk using the built-in Windows disk defragmenter or a program such as Auslogics Disk Defrag Free (www.auslogics.com). Slow boot-ups are most commonly caused by a lot of extra programs launching alongside Windows. You can easily remove unwanted auto-starting items using the Startup manager in CCleaner. or a program such as WinPatrol (www.winpatrol.com). Replacing your current mechanical system drive with a much faster $50 will make a big difference and can cut boot up times from several minutes to a matter of seconds. Decent-sized 5505 are getting cheaper. and you can currently buy a 24068 Kingston Technology V300 drive from Amazon for £73. The other benefit of upgrading to an $50 is that they are far more energy efficient than traditional hard drives. A typical hard drive will consume around SW at peak load while an $50 will use less than 2W. 

Turn off your screen

Old fashioned CRT monitors are rare nowadays. but if you still use one, it will be your biggest consumer of electricity by some margin. Modern flat screens are much better. but you should still get into the habit of switching off your monitor when you step away from your computer. Use the off switch rather than just letting it go into standby. Try turning the brightness down. too - you can usually get used to a darker screen fairly quickly. Screensavers were originally designed to protect your monitor from phosphor burn-in. which is a permanent ghostly image on the screen caused by a still image being displayed continuously for a long time. This is no longer an issue with modern monitors. so screensavers serve no real purpose beyond looking nice. Some of the fanciest screensavers can be very processor intensive. keeping your graphics hardware working and your monitor switched on, all of which wastes electricity. 

Make use of power-saving plans

Windows comes with a comprehensive selection of fully customisable power plans. A balanced set-up will suit most users. but you can reduce overall energy consumption by switching to a power-saver plan instead. In windows 7, click Start. type Power Options into the box and press Enter. It's the same in Windows 8.x. except you need to type Power Options on the Start screen and press Enter.

Anti aliasing [Antialiasing] explain

Different GPUs offer different types of anti aliasing [AA], which is the smoothing out of jaggies that appear on edges of surfaces in games. Let's look at the most common types of anti aliasing and it's explanations:  


Anti aliasing explanation
Exemple of two photos, one use anti aliasing and the other don't

Full Scene AA FSAA, or [AA]:

The most basic type of AA, this is sometimes called super-sampling. It involves rendering a scene at higher resolutions and then down-sampling the final image for a smoother transition between pixels, which appears like softer edges on your screen. lf you run 2XAA,thescene will be calculated at double the resolution, and 4X AA renders it at four times the resolution, hence a massive performance hit.

Multi-Sample AA [MSAAI]: 

This is a more efficient form of FSAA, even though scenes are still rendered at higher resolutions, then down-sampled. It achieves this efficiency by only super-sampling pixels that are along edges; by sampling fewer pixels, you don't see as much of a hit as with FSAA.

Fast Approximate AA [FXAA]: 

This is a shader-based Nvidia cration designed to allow for decent AA with very little to no performance hit. It achieves this by smoothing every pixel onscreen. incluuding those born from pixel shaders, which isn't possible with MSAA.

TXAA: 

This is specific type to Kepler GPU sand combines MSAA with post-processing to achieve higher quality AA,pixelsng, but it's not as efficient as FXAA.

Morphological AA [MLAA]: 

This is AMD technology that uses GPU-accelerated compute functlonality to apply AA as a post-processing effect as opposed to the super-sampling method.

Help for CryptoLocker victims as file-unlocking website goes live

Victims of the ransomware cryptolocker can now get their files back for free, thanks to the work of security experts.

Help for CryptoLocker victims as file-unlocking website goes live
The deadly malware, which was discovered last year, was controlled by the same servers that hosted Gameover Zeus.
These were taken down by an international law enforcement effort in May 2014, although the alleged mastermind - Russian Evgeniy Mikhailovich Bogachev - is still at large (see his FBI ‘Wanted’ poster at http://www.fbi.gov/wanted/cyber/evgeniy-mikhailovich-bogachev).

In the past eight months CryptoLocker infected some 500,000 Windows computers, encrypting users’ files and demanding an average of 5300 (£178) to release them. It’s been estimated that the criminals had managed to extort at least 41,928 Bitcoins from victims - equivalent at the time to about $27 million in the first three months of its operation.

Until now, users have had to pay up to recover their files. But researchers at security companies FireEye and Fox-IT have launched the Decrypt CryptoLocker website (www.decryptcryptolocker.com), where victims can unlock their files.

They will need to enter their email address and upload one of the affected files. They will then receive a master decryption key, plus a download link to the recovery program, and be able to decrypt the remaining files.
The website was created after security researchers obtained a copy of CryptoLocker’s database of victims.

Facebook scams that install malware

What happened ?

Security company Bitdefender revealedthat the UK’s most c1icked—on Facebook scam attempts to trick you into thinking you can see how many people have viewed your profile.
Bitdefender says this is by far the most effective scam on Facebook, comprising 30 per cent of fake links that have been clicked in users’ News Feed. The company’s list of the 10 most clicked scams shows that criminals’ main tactic is to tempt users with scams relating to Facebook itself — for example, by promising to show you how to change the colour of your Facebook page from blue. 
Facebook scams that install malware

These particular scams can be hard to spot because they are presented as Facebook introducing a new feature. Only one scam in Bitdefender’s top 10 uses the bait of a celebrity sex video, which has previously been a common tactic used by hackers. 

In 2013, millions of people fell for a scam claiming to show a sex tape of US pop star Taylor Swift. This year, the promise of a sex video featuring Barbadian singer Rihanna is more popular weapon for hackers,
Clicking any of the seams will take you to a malicious website that tries to infect your PC with a virus.

What should you do?

Be aware that scammers are increasingly trying to con you on Facebook by offering tools for the site that don’t actually exist. One way these may appear in your News Feed is because they’ve been unwittingly ‘liked’ by one of your Facebook friends. To keep yourself safe, install Bitdefender’s Safego, which is a free Facebook app that scans links you receive from your friends. If Safego identifies a link as malicious, you should click the button next to it to warn the friend that sent it.

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