Windows Sandbox is a very useful feature for testing applications. But unfortunately, in some cases, Windows Sandbox fails to start and or displays a "0x80070015, 0x80070057, 0x800706d9, 0x80070002, 0x80070569, 0x80072746 or 0xc0370106" error message. A feature of...
PortQry is a piece of software developed by Microsoft that is used to check ports on a computer network. And it can also be used to check whether a particular port on a host or machine is open, closed, or blocked by a firewall. In addition, PortQry can also be used to...
Sometimes, Firewalls accidentally block certain ports or applications. How do I know if a Firewall is blocking a port? A firewall is a critical system security measure that you should never leave behind. That's why Windows includes a firewall by default. Windows...
Ransomware attacks aggressively seek to exploit network weaknesses and infect unsuspecting victims. Ransomware is a type of malware that locks files or computer systems and demands a ransom (usually in cryptocurrency) in exchange for unlocking them. Ransomware can...
The command-line interface (CLI) is used to interact with the computer and run programs. The CLI receives keyboard input for commands and the computer executes commands delivered at a command prompt. Most programmers use the Command Line to browse their computers and...
Developer Mode is a setting that allows you to install certain programs in Windows 11 by removing system restrictions. Enabling developer mode allows you to install programs that are still in development to test your code or install applications from all sources. You...
Nmap is becoming one of the most popular tools for scanning and mapping networks and for finding weak spots. Nmap (Network Mapper) is a free software for security auditing and network scanning. Many systems and network administrators use it for activities such as...
Remote Desktop Protocol (RDP) is a protocol that allows users to connect to other computers over a network connection using a graphical interface. Remote Desktop software can use several protocols, including RDP, Independent Computing Architecture (ICA), and virtual...
GNS3 is widely used to simulate, configure, test, and troubleshoot real and virtual networks. GNS3 allows you to manage topologies of any size, from those with multiple devices hosted on your laptop to those with multiple devices spread across multiple servers or even...
Restricting access to file-sharing will improve data security and prevent ransomware attacks. File sharing is a commonly used method in organizations by utilizing available networks. There are various ways of doing file sharing, ranging from cloud-based ones to the...
Before you edit or modify the Windows registry, back up from that registry. Fatal errors in changing the registry can cause the operating system to not run normally. In some cases, registry damage can only be repaired by reinstalling the operating system and resulting...
The electronic circuitry used to store binary data is known as computer memory. This is achieved by switching very small electronic control positions on or off. In binary code, 1 is denoted by the on position and 0 is denoted by the off position. A bit refers to 0 and...
The most obvious symptom of a faulty power supply is when you turn on the computer and hear a loud noise, smell burning, or see smoke, and the computer won't turn on. Turn off the power immediately, most likely your power supply is damaged. The Power Supply Unit (PSU)...
In Excel, you can restrict users by only allowing data input with the values you have specified. In this article, Bardimin will share some tricks to only allow the input of specific values in Excel cells. Data entry errors are a problem for any Excel user who wants...
BloatyNosy is a free app that lets you remove the built-in junk apps in Windows that improve your Windows performance. The application is available in portable and installer versions. If you are looking for a free Debloat tool, then you might need to try BloatyNosy...
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