Windows.old is automatically generated whenever you perform an installation of Windows with a previous version of the OS already installed. It creates this Windows.old folder in the root of the Windows partition and stores the previous operating system files and data. In case you try to upgrade from Windows Vista to Windows 7 or Windows 7 to Windows 10 and it fails, you can always revert back to Windows Vista or 7 safely....

By default, when you connect a mouse to your laptop, the touchpad will also be available and active. This allows you to use either the external mouse or touchpad to perform certain actions on your computer. However, in some cases, when you have both an external mouse and touchpad active, you may run into situations where you inadvertently move the mouse pointer simply by resting your palm on the touchpad of your device....

Some applications do not yet support PHP 7.2. If you find yourself running PHP 7.2 for apps that don’t yet support it, you’ll probably want to downgrade to a supported version of PHP. This brief tutorial shows students and new users how to run Ubuntu 18.04 but still install PHP 7.1 to support your apps. This post should be quick and easy. The good thing about this is you can install PHP 7....

This feature is disabled by default in Windows 11. A nearby sharing feature is a handy tool, especially if you want to quickly share content with someone or some device nearby via Bluetooth or Wi-Fi connection. You can also use Nearby sharing to share with other PCs. However, both PCs—the one you’re sharing from and the one you’re sharing with—must have Bluetooth enabled. With this, no need for a USB thumb drive or external drive to share between PCs....

For some apps to function properly, they need to know where you’re located and where you’re connecting from. Ubuntu Linux geolocation, or location services, uses cell tower positioning, GPS, and nearby Wi-Fi access points to determine your current location for use in setting your time zone, and by applications such as maps. When enabled, your location can be shared over the network with a great deal of precision. If you feel that location services in Ubuntu Linux are evading your privacy, you can turn this feature off or if you don’t mind, turn it back on....

With Windows File Explorer, one can view file sizes in the size(s) column but not for folders. If you’re new to Windows and want to find the size of a specific folder to see how big its content is, you can use the steps below. For students or new users looking for a computer to start learning on, the easiest place to start is Windows 10. Windows 10 is the most recent version of operating systems for personal computers developed and released by Microsoft as part of its Windows NT family....

If restarting your computer didn’t fix the problem (try that if you haven’t already), then the troubleshooting tips that follow should help you sort things out. Restart Your Router In most cases, the “Wi-Fi doesn’t have a valid IP configuration” error shows up due to random faults on the router side. The solution—restart your router. Start by turning OFF the router. Then, wait for at least 10 seconds before turning it back ON....

The good news is that BSOD errors are usually easy to figure out. The kernel data inpage error suggests there’s a problem with the computer’s memory or hard drive. Perhaps the hard disk has some bad sectors, or there’s something wrong with the physical connections. The RAM modules might not be correctly installed. Either way, the error is most often hardware-related, so here are a few possible fixes that can solve your problem....

Windows 10 uses the Rundll32 process to execute 32-bit DLL (dynamic-link library) files. These files contain functions that are shared across multiple applications. However, conflicting software, improperly configured settings, or corrupted system files can cause Rundll32 to break down, hence the reason for the error. The “Rundll32 has stopped working” error has been plaguing Windows users for years, but there are several fixes that can help you get rid of it....

This is because google starting displaying a warning message in its Chrome browser whenever a user would visit a website URL that started with HTTP rather than HTTPS. To make sure your website is up to web security standards, you’ll want to purchase an SSL certificate and install it on your website. Determine Your Dedicated IP Address For an SSL certificate to work, your web server needs to have a fixed, dedicated IP address....

Many printer manufacturers such as Brother and HP support Linux distributions and release their own printer drivers. But before installing a printer from another brand, you should look at their website to see if they support Linux. Keep in mind that your desktop environment is what dictates the configuration tool you need to use to set up your printer, not the Linux distribution. Is It Already There? Many modern printers have powerful network capabilities....

For the uninitiated, Apache Groovy is a powerful, dynamic language for the Java platform that helps developers create programs with easy-to-learn syntax. It is a great tool and integrates smoothly with any Java program which enables developers to create better applications with powerful features, including scripting capabilities, and many more. If you’re a Java developer who’s going to be developing applications, integrating Apache Groovy with your codes should be something you might want to do....

Broadleaf Commerce is an enterprise eCommerce platform that provides the next-level eCommerce functionality. With a streamlined and centralized interface, you can enable multiple sites for multiple brands using the same underlying codes. Not only can do manage your sites but broadleaf commerce includes product manage, order management, catalog management order, checkout modules, and more. It has comprehensive product features for small, medium, and large businesses that want a platform designed on some of the hottest open-source technologies such as JAVA, Maven, and JavaScript framework....

Dolibarr is an open-source, all-in-one ERP and CRM platform for businesses and individuals to manage their customers, invoices, orders, products, inventories, and more. It also includes human resources and accounting components to help manage the business employees and finances. Dolibarr is designed to allow enterprises and business owners to collaborate and automate engaging experiences with customers throughout the entire process. For more about Dolibarr, please check out this page....

If you are looking for a CMS platform that is easy to install, simple to maintain, and flexible, then Dotclear is a good place to start. With Dotclear, you get a platform with a feature-rich editor, user-friendly administration, flexible and customizable themes and template system, and built-in support for features such as antispam, XML/RPC, and more. This CMS platform is fast and lightweight and gives webmasters modular and extensible features to collaborate and automate engaging experiences with users across multiple devices, including mobile....

It comes with support for comments, trackbacks, multiple syndication formats, spam protection, and many more features that are available with other popular CMS platforms. Geeklog is designed for ease of use with security features that may help protect your content out of the box. For more about Geeklog, please check its homepage. This brief tutorial is going to show students and new users how to install Geeklog CMS on Ubuntu 16....

Graphical Network Simulator-3 (GNS3) is a network software emulator that helps network professionals design and builds better networks, shares ideas, and make connections. GNS3 can be used to configure, test, and troubleshoot virtualized networks to emulate real-world hardware devices. It has helped thousands of network professionals network pass network exams, and can be used in training sessions without purchasing real hardware which may cost a lot. GNS3 works with multiple vendors’ hardware devices including, Cisco virtual switches, Cisco ASAs, Brocade voters, Cumulus Linux switches, Docker instances, HPE VSRs, and others....

Kamailio is a free, open-source, and flexible SIP server that is capable of handling thousands of call setups per second. It is based on OpenSER and SER. With Kamailio, you can build large platforms for VoIP and real-time communications – presence, WebRTC, Instant messaging, and other applications. If you’re looking for an open-source SIP server to run your business VoIP and real-time communication presence, then you might want to take a look at Kamailio....

Lektor is a cross-platform, flexible, and powerful static content management system (CMS) built on top of the popular web-development framework for building complex and beautiful websites out of flat files. All source data is stored in a flat-file tree database, built out of 100% static HTML you can deploy them to any host, fully equipped with a flexible and beautiful admin interface, plugins system, and many more. If you’re a developer looking for an alternative flat-file CMS platform, it may be a good thing to use Lektor to make the process seamless with rapid development and clean pragmatic design....

Traditionally, users typically connect to a database server’s console and run queries and commands to manage databases, users’ permissions, and other tasks. However, for those not comfortable using the command line interface to manage databases, the phpMyAdmin web interface is a great alternative. With phpMyAdmin, you’ll be able to manage MySQL databases, user accounts, and privileges, execute SQL statements, import and export data in a variety of data formats, and much more....