Windows 10 & 11: Security Policies Block Unauthenticated Guest Access - FIX!

Fixing SMB Guest Access Issues on Windows:

 Registry, Group Policy, and Server-Side

If you're trying to access an SMB share from Windows and getting blocked due to guest access restrictions, you're not alone. Microsoft tightened SMB security in recent versions of Windows, disabling insecure guest logons by default. While this improves security, it can break access to older or misconfigured servers — including setups like CasaOS or ZimaBoard.

Here are a few ways to fix it, ranging from quick registry tweaks to more secure server-side adjustments.

OPNsense Installation Guide

 

OPNsense Installation Guide (ISO)

If you're looking to take control of your network with enterprise-grade tools, installing OPNsense is a powerful first step. Whether you're setting up a home lab, securing a small business network, or just want better visibility and filtering, this guide walks you through the full installation process; from hardware prep to post-install configuration. With just a few components and a bit of time, you’ll be ready to deploy a firewall and DNS solution that rivals commercial offerings.

OPNSense DNS Server Setup via ProxMox

 

Private DNS Server & Traffic Monitoring:
OPNsense VM on ProxMox

Setting up a secure and intelligent home network doesn’t have to be complicated. In this guide, we’ll walk you through how to deploy OPNsense on Proxmox as a private DNS server and traffic monitor, giving you enterprise-grade filtering, visibility, and control; right from your living room. Whether you're looking to block ads, monitor bandwidth, or enhance your network’s security posture, this setup offers a powerful and flexible solution without replacing your existing router.

Raspberry Pi 4 Overclocking

🎯 Overview

This tutorial will guide you through safely overclocking your Raspberry Pi 4 for maximum performance. We'll start conservative and work up to more aggressive settings.

A Complete Guide To SSD Cache Types

 

Understanding SSD Cache Types:
Complete Guide to SLC, MLC, TLC, QLC, and More

When shopping for an SSD, you'll encounter a bewildering array of acronyms: SLC, MLC, TLC, QLC, and various caching technologies. Understanding these different memory types and caching strategies is crucial for making informed decisions about storage performance, endurance, and value. Let's break down everything you need to know about SSD cache types and technologies.

Enroll in the Windows 10 ESU Program

Enroll in the Windows 10 ESU Program:

Free & Paid Options

💡 What Is the Windows 10 ESU Program?

As Windows 10 approaches its end-of-support date on October 14, 2025, many users and organizations are wondering how to keep their systems secure. Microsoft’s Extended Security Updates (ESU) program offers a solution; and the good news is, some users may qualify for free access. This guide walks you through both the free and paid enrollment options, with clear steps and helpful visuals to make the process simple.

The Extended Security Updates (ESU) program allows individuals and organizations to continue receiving critical and important security updates for Windows 10 devices after official support ends on October 14, 2025.

Complete Spam Filtering Guide

Complete Spam Filtering Guide for
Common & Local Email Services

In our interconnected digital world, email remains an essential communication tool for both personal and professional use. However, spam and phishing attempts continue to plague inboxes across all email platforms. While major email providers offer built-in spam protection, understanding how to optimize these settings and create additional safeguards is crucial for maintaining a clean, secure inbox.

Ensure Spam Filtering Is Active & Set-Up: Microsoft Outlook

Ensure Spam Filtering Is Active & Set-Up Correctly in Microsoft Outlook

In today’s digital workplace, email remains a critical communication tool, but it’s also a prime target for spam and phishing attacks. While Microsoft Outlook offers robust built-in spam filtering, no system is perfect. Some unwanted messages inevitably slip through the cracks, cluttering your inbox and potentially posing security risks.

This guide walks you through two essential strategies to keep your inbox clean and secure:Ensuring Outlook’s spam filtering is active and properly configured.
Creating custom rules to catch and remove spam that evades automatic detection.

Troubleshoot Mac Scanning Problems & Issues

 

Scanning on Your Mac Not Working?

Here's How to Try to Fix It!

If your printer or scanner won't scan to your Mac/Apple computer anymore, try these steps to hopefully get things fixed:

Portable Sysinternals Suite System Tester

As IT professionals, we've all been there: you're troubleshooting a client's computer, performing routine maintenance, or trying to quickly assess a system's health before handing it back to a customer. Traditional diagnostic tools often require installation, leave traces on the system, or produce verbose outputs filled with technical jargon that clients don't need to see.

Enter the Portable Sysinternals Suite System Tester! A game-changing PowerShell toolkit that transforms how we approach Windows system diagnostics. This thumb-drive friendly solution combines the power of Microsoft's renowned Sysinternals Suite with built-in Windows tools to deliver comprehensive system health reports without leaving a footprint on the target machine.

https://github.com/Pnwcomputers/SystemTester

How Supply Chain Attacks Can Bypass Your Best Security Measures

 

The Hidden Threat:

How Supply Chain Attacks Can Bypass Your Best Security Measures

In the world of cybersecurity, organizations invest millions in firewalls, endpoint protection, network monitoring, and employee training. Yet some of the most devastating breaches in recent history have occurred not through brute force attacks on these defenses, but by targeting something far more insidious: the supply chain itself. Supply chain attacks represent a fundamental shift in the threat landscape, demonstrating how attackers can completely circumvent even the most robust security measures by compromising the very tools and systems we trust to keep us safe.

Windows PC Clean-up and Tune-up Guide - 2025 Update

 

Full & Complete Windows PC Clean-up Guide

Overview

This guide provides a systematic approach to cleaning, securing, and optimizing a Windows PC using both built-in tools and trusted third-party utilities. Follow these steps in order for best results.

Prerequisites

• Administrator access to the Windows PC
• Stable internet connection for downloads and updates
• Create System Restore Point before beginning