IT Guides and Resources for Small Businesses

Practical IT guides explaining how technology problems and security risks occur across websites, email systems, cloud services, devices, and local networks used by organisations, professionals, and individuals.

These guides focus on how systems normally behave, why certain problems occur, and what realistic steps help restore stability or reduce risk.

Some issues appear to affect one device but are actually linked to shared systems such as email platforms, cloud services, DNS, website configuration, or network infrastructure. Where that happens, structured IT support may be required rather than isolated troubleshooting.

Explore how structured IT support and infrastructure services help maintain business-critical systems across London, Hertfordshire and Essex.

If you are reviewing support options in a specific area or exploring the broader services we provide, you can view the towns we cover and our full services framework below.

Local IT Support for Businesses Across London, Hertfordshire and Essex

Full IT Services Framework

This page groups our guides by topic so readers can move more quickly to the areas most relevant to their question or concern. Use the links below to jump to each guide section.

• Security, Infrastructure and Online Accounts
• Email and Communication Systems
• Security and Online Threats
• Websites, WordPress and Online Services
• Networks, Internet Connectivity and Infrastructure
• Devices and Operating Systems
• Reviewing a Technical Issue

This diagram shows how practical IT issues can connect to local support and, where necessary, to broader IT support for shared business systems.

Many technical issues begin with a single symptom but may relate to wider configuration, authentication, network or infrastructure dependencies.

When this happens, it can indicate that responsibility extends beyond one device and into shared systems that require ongoing oversight.

The guides below are grouped into several areas that reflect common types of technology issues encountered when supporting organisations, professionals, and individuals. These areas include email systems, website platforms, network connectivity, security risks, and data protection.

Grouping the guides in this way makes it easier to explore related topics and understand how different technical systems interact. Many issues that appear to affect a single device may actually involve wider infrastructure such as email authentication systems, cloud services, DNS configuration, or network connectivity.

Guides explaining core security concepts, internet infrastructure, account protection, backup, and layered security in practice.

Guides:

What is layered security and why does it matter

Explains what layered security means and why modern technology depends on multiple overlapping controls. Covers websites, devices, networks, browsers, accounts, backups, and third party services.

Should PowerShell execution policy be Unrestricted on the whole machine?

Explains what PowerShell execution policy does, why setting Unrestricted across the whole machine is often too broad, and how to interpret common results in plain language. Also outlines what settings such as RemoteSigned do and do not tell you, so the topic is understood as part of wider security rather than as a single hardening step.

How to improve browser security in Chrome and other browsers

Explains how browser security and privacy settings work in Chrome and other browsers, including permissions, extensions, Secure DNS, browser fingerprinting, and cookies. Also outlines what these controls can reduce, what they do not prevent, and how to review browser exposure more carefully.

What is NextDNS and what does it do?

Explains what NextDNS is, what it does, how DNS filtering works, what it can help block, and where its limits are. Also outlines how it differs from broader platforms such as Cloudflare and where it fits in layered security.

Why DNSSEC matters and how DNS attacks can redirect internet traffic

Explains how the Domain Name System (DNS) directs internet traffic and why attackers sometimes attempt to manipulate DNS responses. The guide outlines how DNS poisoning and related attacks can redirect users to fraudulent systems and how DNSSEC introduces cryptographic verification to help ensure DNS answers are authentic.

Email validation and security explained

Plain English explanation of SPF, DKIM, DMARC, and MTA-STS, with guidance on when to review email security settings.

Cloud Storage vs Backup. Why Sync Is Not Backup

Explains the difference between synchronisation and proper backup, how deletion and ransomware can propagate in cloud storage, and why independent versioned backup matters.

Guides related to email platforms, Outlook behaviour, authentication policies, and collaboration tools.

Guides:

Email not working for your business. What to check first

A clear, non technical guide explaining why business email stops working and what to check before making changes. Helps identify whether the issue is local, account related, or system wide.

Outlook not sending emails but webmail works

Explains why Outlook can stop sending or receiving emails even when webmail works correctly, and how to recognise when the issue is local to one device rather than the email service itself.

Outlook calendar and contacts do not sync to iCloud

If Outlook calendar and contacts are not syncing with iCloud, this guide explains common causes, including error 0x800706ba, safe checks to try first, and when help is needed.

Printer or scanner cannot send email using Google Workspace

Explains why printers and scanners often stop sending email when using Google Workspace, following security changes. Outlines the available options at a high level and explains when assessment is needed, without step by step configuration.

Microsoft Teams issues for external users and guests

Explains common limitations affecting external users and guests in Microsoft Teams, including recordings and file access.

Solution to the Disappearing Bullet Points in Microsoft Outlook

Fixes an Outlook issue where second level or nested bullet points disappear after sending emails.

Excel Asking You to Save With a Different Name in OneDrive or SharePoint

Why Excel prompts you to save a shared file with a different name in OneDrive or SharePoint, and how to restore normal collaboration safely.

Guides explaining security risks, scams, malware, account compromise, and practical account protection topics.

Guides:

Are passkeys and security keys the same thing?

This guide explains the difference between passkeys and security keys in plain language. Covers synced passkeys, hardware bound passkeys, YubiKeys, and why the terms are often confused.

How YubiKeys work and how to configure them in Intune and Entra ID

Explains what YubiKeys are, how they relate to passkeys, and how they are configured in Microsoft Intune and Microsoft Entra ID. Covers attestation, AAGUID restrictions, Conditional Access, rollout planning, and practical limitations to review before wider deployment.

Can money be taken from a locked phone using contactless payment?

Explains when contactless payments from a locked phone are possible, how NFC and Express Mode affect risk, and which settings are worth reviewing on Android and iPhone. Also outlines what physical shielding can and cannot do, so the topic is understood as part of wider layered security.

Fake CAPTCHA Malware on WordPress Websites Explained

This guide explains how fake CAPTCHA malware appears on compromised WordPress websites, how it attempts to trick visitors into running malicious commands, and what practical security controls reduce the risk of recurrence. It includes immediate containment steps and longer-term hardening measures based on real-world incident patterns.

WhatsApp security guide. How to protect your account and device

Explains practical steps to reduce the risk of account takeover, protect sensitive messages, and limit exposure if a phone is lost or stolen.

WhatsApp Verification Code Scam Explained

Explains why attackers request WhatsApp verification codes, how the scam works, and what steps to take if you receive or accidentally share a code.

How to Check if Someone Is Using WhatsApp Web on Your Account

Explains how to check whether WhatsApp Web or desktop sessions are connected to your account and how to safely log out of devices you do not recognise.

How to Check if Your WhatsApp Account Has Been Hacked

Explains the common signs that a WhatsApp account may have been compromised and how to confirm whether another device may be accessing your messages.

Stop People Adding You to WhatsApp Groups

Explains why people may add you to WhatsApp groups without permission and how to control group invitations using WhatsApp privacy settings.

Your Phone Number Was Registered With WhatsApp on a New Device

Explains why WhatsApp may report that your phone number has been registered on a new device, what situations normally trigger this message, and how to confirm whether your account remains secure.

How to check if a download is safe when everything looks legitimate

A practical guide using the recent fake 7-Zip installer case to explain what you can realistically check and how to reduce risk if detection lags.

Can PDF files be dangerous?

Explains why PDF files can still be used in real attacks, how trusted document workflows are sometimes abused, and what protection layers help reduce risk. Also outlines the limits of PDF hardening so the topic is understood as part of wider security, not as a single setting or permanent checklist.

Guides covering website security, hosting behaviour, and web infrastructure.

Guides:

WordPress Hardening for Small Organisations

Explains the practical security controls that help reduce risk on WordPress websites, including correct file permissions, access controls, configuration settings, and monitoring. Outlines what to verify in a typical hosting environment and how these measures support ongoing website stability.

Wordfence Security Settings Review

Explains how to review essential Wordfence security settings in a structured way. Covers firewall configuration, login protection, file integrity monitoring, and alert discipline within a layered security approach.

WordPress security headers explained. How to add them safely

Learn how browser enforced security headers work, how to implement them safely in WordPress, and how to verify they are active using Chrome DevTools.

sprites core SVG 404 error in WordPress and Divi

Explains why a sprites core SVG 404 error may appear in browser consoles or audit reports on WordPress and Divi sites, what it means in practice, and when action is required.

Why a page is missing from the Yoast sitemap

Explains why a published WordPress page can be missing from the Yoast XML sitemap, and the canonical URL detail that is commonly overlooked.

Bing reports HTTP 400–499 errors on my website

Why Bing can report HTTP 400–499 errors even when a site works normally, how Cloudflare settings like Browser Integrity Check can affect scans, and how to verify results safely.

Guides explaining how networks and internet infrastructure affect systems.

Guides:

Laptop connected to WiFi but no internet

Explains why a laptop can show a WiFi connection while internet access is unavailable, and how to understand whether the problem is local, network related, or external.

Understanding internet access in offices, hotels, and public places

A plain-English guide explaining office internet, mobile hotspots, public Wi-Fi risks, and how to connect devices more safely.

Fixing Paramount Plus playback issues when using NextDNS

If Paramount Plus does not work on an LG TV, Sky TV box, or web browser while using NextDNS, this guide explains why and how to restore streaming without disabling DNS protection.

ChatGPT not working in Firefox. What to check and what helps

Why ChatGPT may stop working in Firefox, common symptoms, and realistic workarounds without weakening security.

How to access CCTV from a computer or web browser

If you can view your CCTV on your phone but not on a computer, this guide explains why that happens and what access options are realistically available today.

Guides explaining common issues affecting computers, operating systems, and device performance, including upgrade limitations, system behaviour, and realistic options when devices reach the end of their supported lifecycle.

Guides:

Can I use my own router with my ISP connection?

Explains when a third party router can replace an ISP router, when bridge mode or modem only mode is the cleaner design, and when DMZ may be the next best option. Also outlines what common terms such as ISP, private IP address, public IP address, static IP address, and dynamic IP address mean so the design choices are easier to understand.

Windows 10 is no longer supported. What are your options?

Explains what Windows 10 end of support means, why some devices cannot upgrade to Windows 11, and what supported options exist.

Computer running slow. What actually helps

Explains the most common reasons a computer becomes slow, what checks are worth doing first, and what usually helps in practice without assuming the device needs to be replaced.

How to move to a new Android phone without losing data

Explains how to move to a new Android phone without losing important data. Covers storage checks, cable transfer, SMS migration issues, WhatsApp backup and restore, Google Discover on Samsung phones, and what to review before converting from a physical SIM to an eSIM.