The program VirtualBox is used to create Virtual Machines (VM) and run different operating systems inside our PC. For example, if we have installed Ubuntu on our computer, we will be able to launch a Virtual Machine and run a Windows Operating System inside of it.One of the advantages that virtual machines have, is that we will be able to easily share information between the Main PC (Host) and the Virtual PC (Guest). For example, we will be able to copy files from one machine to another, or even copy and paste the contents of the clipboard from one machine...

Messaging mobile apps don't cease to be updated and launch new features to improve their service. If yesterday Viber announced the Public Chat Rooms that allows chatting with some celebrities and popular people, today WhatsApp announce that the messages sent from this application will be encrypted.Until now, the messages that are sent with WhatsApp are not encrypted. This means that any person with access to the same WiFi network, and making use of a traffic Sniffer, could easily capture the data packets transmitted by WhatsApp and read the conversations that occurred in our phone. It is true that if we...

Viber is the direct competitor of WhatsApp, and despite having fewer users, it doesn't cease to innovate and develop interesting updates.The new version of Viber for iOS and Android allows access to “Public Chats”. On these chats, we will be able to share text messages, videos, stickers, etc. The peculiarity of these “Public Chats”, is that it will be led by famous or well-known people, for example, there are chat rooms where we can interact with Pitbull, Paul van Dyk, the blogger Perez Hilton, or radio and tv stations. By the time there are 300 groups of “Public Chats”.In principle...

The new TeamViewer version has support for video calls, so users can call anyone in his contact list, and see him. TeamViewer is a software that allows the remote control of computers. This program is perfect for remote technical support, without the need to move to the place where the “broken” computer is located. So it is only necessary to install this software on the computer with problems, and on the technician computer that will address the problem. Both computer must be connected to the Internet. Once both computers have installed the software, the technician is able to connect to the...

Today, our Personal Computers are more protected than ever, because there are a lot of programs that detect and eliminate threats that want to access our computer. Nevertheless, we can not say that Personal Computers are more secure than a few decades ago.Without a doubt, the computers with Windows Operating Systems installed on it, are most at risk, because most threats have as their objective Microsoft's Operating Systems. Due to this situation, many tools for Virus, Spyware and Malware detection and elimination are developed.It is important to know how to differentiate what action is performed by each type of threat...

The latest version of WhatsApp (2.11.43), there is a new feature that has been tested during the last month: the double blue tick, or double blue check. What does double check mean? Well, for many users this functionality will bring calm to their lives, because they now can know if the receiver of the message has read the message or not. So: double blue check means that the message you have sent has been read by the person you've sent the message. Although it really means that the receiver mobile phone has received the message, and someone has opened the WhatsApp...

In the last few days there are news and rumors about the new Windows Operating System, Windows 9. Although only 2 years has been passed since the release of Windows 8 (26 October 2012), and only one year after the launch of Windows 8.1 (October 18, 2013) update, the launch of Windows 9 in April 2015 is now under preparation.Is expected that for the 30 september 2014 Microsoft convene a large press event, and show the new Windows 9 operating system, also known as Threshold.Everything points that the new Windows version will be focused on desktop users, and it returns back...

One year ago PlayStation 4 was launched. It is likely that many users will already have this video console or the other “Next Gen” video console (Xbox One, Wii U). Because of this, video consoles of the previous generation (PS3) fall into disuse or simply are less played. Let's see how to take advantage of the PlayStation 3 Gamepads (DualShock 3), and use it to manage the PC (Windows). This way we take advantage of the PS3 wireless controller, which is a device of very high quality and high price, and avoid buying a new wireless device to control the PC....

When it comes to manage files and directories, a very basic and common operation is the search for files or specific directories. This type of operations are very simple, but rarely are used the right way, so file searched is not found, or it takes more time than necessary to find what we are looking for. In this tutorial we are going to address one of the most powerful functions of Total Commander: the search for files and directories.Let's start by clarifying a few concepts that are basic to continue with this tutorial: Full filenames: The full name of a file...

Microsoft desktop Operating Systems have a lifecycle in which receive updates and security patches. When an Operating System (OS) reaches the end of its cycle of life, doesn't mean that we will not be able to use this Operating System. For example, Windows XP reached the end of its lifecycle on April 8, 2014, and this Operating System is still installed and working in a multitude of world wide computers. According our users data, 20% of our visitors still using Windows XP on their personal computers.Then, What means that Windows XP has reached the end of its life cycle?The lifecycle of...

Recently, Microsoft sent emails to the users of Skype that have a version of Android 2.2 or below. The content of the email is the following:Skype apps for Android OS 2.2 (or below) are being permanently retiredWe've noticed that you are, or previously were, signed into Skype on a phone running the Android 2.2 (or below) operating system. We're sorry to inform you that we are now retiring all Skype apps that work on these older versions of the Android operating system. As a result, within the next few weeks, you'll no longer be able to sign in and use...

The latest Google Chrome versions don't allow to install extensions that do not come from Chrome Web Store. In a previous tutorial, we explained how to install external extensions following some steps.Now we are going to explain an easier way to install external extensions on Google Chrome. We have tested this way to install extensions on Windows 7 and Windows 8.1 with Google Chrome 36.0.1985.143 m version.Here is the video that accompanies this tutorial, where you can see a summary of the process to enable external extensions that aren't in Chrome Web Store.The first thing we need to do is download the...

In some of the tutorials that are published in Usitility we make reference to the tool gpedit.msc, for example in this tutorial How to install extensions from outside the Chrome Web Store in Google Chrome.The program gpedit.msc is used by administrators system to monitor and edit group policies. These group policies can be edited directly inside the Windows registry, but thanks to gpedit.msc, we will be able to edit more easily those policies.gpedit.msc is not installed by default in all Windows operating systems. In this tutorial, we will see how to install gpedit.msc on Windows 7 Home, Home Premium and...

This tutorial is aimed at users who want to emulate Sony PlayStation 2 games, and use HyperSpin front-end to browse the video games catalog and launch the emulator. First of all let's us to make a small introduction for those who don't know what is emulation, or don't know what it is HyperSpin. If you already know this information, you can skip these lines and go directly to the tutorial instructions.The emulation of systems is the capacity to run programs from one platform in a completely different one. For example, if we can play the Game Boy video games on PC,...

Summer is a time of year when we can enjoy our free time: reading, go for walks, chat with friends, and why not, learn to play a musical instrument. Thanks to Personal Computers and new technologies, we can learn to play different musical instruments from the comfort of home and without making large investments.In this case let's see how to learn to play the piano in a fun and simple way making use of a program called Synthesia.To use this program, it is not necessary to have a MIDI music keyboard, although, obviously, is something recommended, because we will be able...

When we use the computer, it is common that desktop ends filled up with shortcut icons of those programs most used, so we can access to that programs easily. This way of organizing shortcuts can be used if we use a small number of software. It is more likely that that desktop will be filled up with dozens of shortcuts, and we need to memorize the location of each program's shortcut to open it. This will slow down the process of launching programs.In this tutorial we will see how we speed up the access to the software installed in the computer....

Using a computer means that at any given moment we must learn how to manage system files. For example, to copy a list of files from one folder to another, to delete a folder with all the files that it contains, to unzip a file, etc.. Windows includes a tool called Windows Explorer that let us to move around directories an files and make some basic operations over files and directories.While the Windows Explorer is useful and carries out its mission, it is a basic file management tool. If we want to have more speed and agility when it comes to...

Browsers are programs that requires virtually the same care that Operating Systems, that is why there are a multitude of extensions or plug-ins that expands the browser's functions, like plugins that allow the browser to make a better usage of the memory, plugins that help us to organize the tabs in a better way, plugins that turn on or off certain options, etc. In such a way that we will get the maximum benefit out of our browser. In recent years, the program Google Chrome has been become the most widely used browser by users on the Internet. This is due...

On February of 2014 Google has updated his popular browser, Chrome, to version 33, fixing some bugs and adding a functionality that has created controversy during these months. As from this version, we cannot install extensions that do not come from the Chrome Web Store (CWS). That is to say, if we try to install a extension (.crx) that is in our hard disk and not come from the CWS, the browser will not let us install it.In addition, the new version not only prevents the installation of external extensions, but also disable those extensions already installed that doesn't come from...

In February of 2014 version 2.11.169 of WhatsApp was launched, and since that version it is possible to set an option to hide to our contacts when was the last time we have been connected in WhatsApp,Despite being a very simple configuration, there are many people who do not know how to access this setting, or that simply don't know that this possibility exists. In Usitility we've make this simple tutorial where we explain how to hide WhatsApp last seen on Android.Before we start with the instructions, it is important to clarify that if we enable this option, our contacts will...

Summer is here (in the northern hemisphere of the planet). No more homeworks, exams, etc. Many people have a few days of vacation. It is time for sun, beach, swimming pool, and leisure. We can take a walk with our family, go out with friends to have a drink, read those books that we don't have time to read at other times of the year, or play video games. That might sound simple, but it may become an impossible task. It is usual want to play a game and not knowing which to choose. We look in the stack of video...

Many people wonder how to make use of WhatsApp on the computer. There are pages on the Internet that promise to have the WhatsApp installable file (WhatsApp.exe). That file is a fraud, because there is NO official WhatsApp application for PC (Windows, Mac, or Linux).So if we want to use WhatsApp on PC, we must make use of a Android emulator for PC. Before we begin let's clarify some basic concepts of this tutorial. If you already know what is Android, or have media-advanced knowledge in computers, you can skip this paragraph and go directly to the tutorial which explains the...