How to Fix Dell Inspiron 6000 Blank Screen Issue Caused by Faulty Lid Closure
A step-by-step way to tell whether a blank laptop screen is the panel, the cable, the lid sensor or the motherboard, using an external monitor and the Dell LCD test.
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Static vs Dynamic IP Addresses: What Is the Difference?
When to use a static IP, when DHCP is better, why a DHCP reservation is often the best of both, and how to set an address on Windows 11 and Ubuntu.
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IP Address Format and Function: IPv4, IPv6 and CIDR Explained
Read an IP address properly: octets and bits, network and host parts, CIDR slash notation, how many hosts fit in a subnet, and how IPv6 addresses are written.
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What Is an IP Address? Understanding the Basics
What an IP address is, how IPv4 and IPv6 differ, the private ranges behind your router, and how to find your own address.
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Networking Devices: From Hubs and Switches to Routers and Modems
What hubs, switches, routers, modems, access points, repeaters and firewalls do, which layer each works at, and how they fit together at home.
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What Is a Core Router?
What a core router does, how it differs from edge and distribution routers, and the design ideas that keep a large network fast and available.
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BIOS vs UEFI: How a PC Starts Before Windows Loads
How BIOS and UEFI boot differently, what MBR, GPT and the EFI System Partition are, and how to check and convert your own PC.
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Windows Boot Process Step by Step (and How to Fix Each Stage)
The six stages of a UEFI Windows boot, what each one does, the errors it produces and the repair commands to use, from POST to logon.
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NTFS Alternate Data Streams: How to Find, Read and Remove Them
What NTFS alternate data streams are, how to create, list and delete them with cmd and PowerShell, and why attackers and defenders care.
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Windows File Systems Compared: NTFS, FAT32, exFAT and ReFS
NTFS, FAT32, exFAT and ReFS compared with limits, use cases, and the difference between converting and formatting a drive.
