Computer Health Blog
Tips, guides and advice for keeping your Mac or Windows computer running at its best.
5 Signs Your Computer Needs a Health Check
Is your computer trying to tell you something? These warning signs mean it's time to run a full diagnostic scan before something goes seriously wrong.
Why Your Computer Slows Down Over Time (And How to Fix It)
Your computer was fast when you bought it. Here's exactly why it's slower now — and what you can actually do about it without spending a fortune.
How to Check Your Computer's Health Without Being Technical
You don't need to be an IT expert to understand what's going on inside your computer. Here's the easiest way to get a full health report.
Is Your Computer Overheating? Warning Signs and How to Fix It
Overheating is one of the most common causes of computer crashes, slowdowns and hardware failure. Here's how to tell if it's happening to your computer.
Do You Actually Need More RAM? How to Check and What to Do
RAM shortages cause more computer slowdowns than almost anything else. Here's how to check if your computer needs more memory — and whether it's worth upgrading.
Computer Security Checklist: 10 Things to Check Right Now
Most computers have at least one security vulnerability that most people don't know about. Run through this checklist to make sure yours is properly protected.
Is Your Hard Drive About to Fail? 7 Warning Signs to Watch For
Hard drive failure is often gradual — it gives you warning signs before it happens. Knowing what to look for could save all your files.
What's Actually Connected to Your Home Network?
Most people have no idea what devices are connected to their home WiFi. A network scan can reveal unknown devices, printers, security cameras and more.
How to Check Your Laptop Battery Health and Make It Last Longer
Laptop batteries degrade over time and most people don't notice until it's too late. Here's how to check your battery health and slow down its decline.
The Best Computer Diagnostic Tools in 2026 (Compared)
There are dozens of computer diagnostic tools out there. We compare the most popular options — what they show, how easy they are to use, and which gives the best value.
How to Speed Up a Slow Windows 10 or 11 Computer
Windows computers slow down for very specific reasons. Here's a step-by-step guide to identifying what's dragging yours down and fixing it without spending any money.
How to Speed Up a Slow Mac: The Complete Guide
Your Mac should run fast for years. If it doesn't, there are concrete reasons why — and most of them are fixable without visiting an Apple Store.
What Does CPU Usage Actually Mean? A Plain English Guide
Your computer's CPU usage is one of the most important numbers to understand. Here's what it means, what's normal, and when to be concerned.
How to Free Up Disk Space on Windows 10 and 11
A full hard drive slows your computer dramatically. Here's how to find what's taking up space and safely clear it — without deleting anything important.
How to Free Up Disk Space on a Mac
macOS makes it surprisingly hard to see what's eating your storage. Here's how to find and clear the hidden files, downloads and caches slowing you down.
Signs Your Computer Has a Virus or Malware
Malware is sneakier than most people think. These are the warning signs that something suspicious is running on your computer — and what to do about it.
Is It Your WiFi or Your Computer? How to Tell the Difference
Slow internet is frustrating — but is it your router or your PC? Here's a simple way to work out exactly where the bottleneck is.
SSD vs HDD: What's the Difference and Which Is Faster?
Solid state drives are one of the biggest performance upgrades you can make. Here's what they are, how much faster they actually are, and whether you should upgrade.
How to Make Your Laptop Battery Last Longer
Most laptop batteries lose capacity much faster than they should. These habits and settings will help your battery last longer every charge and stay healthy for years.
Computer Running Hot? Causes, Warning Signs and Fixes
Overheating causes slowdowns, crashes and permanent damage. Here's how to tell if your computer is running too hot, why it happens, and what to do about it.
How to Check Your Internet Speed Properly (And What the Numbers Mean)
Speed test results can be misleading. Here's how to get an accurate reading of your internet speed, what download, upload and ping actually mean, and what to expect.
What Do Computer Specs Actually Mean? GHz, GB, RAM and More Explained
Shopping for a computer — or just trying to understand what yours can do? Here's what all those numbers and letters actually mean in plain English.
How to Back Up Your Computer Properly
Most people only think about backing up after they've lost something. Here's the right way to protect your files so you never lose anything important.
Why Does My Computer Crash Randomly? 8 Common Causes
Random crashes are one of the most frustrating computer problems. Here are the eight most common causes and how to diagnose which one is affecting your machine.
How to Speed Up Your Browser and Make It Feel Like New
Web browsers get slower over time as they accumulate extensions, cached data and outdated settings. Here's how to get yours running fast again in under 10 minutes.
The Best Free Tools to Check Your Computer's Health in 2026
You don't need to pay an IT technician to find out what's wrong with your computer. These tools will tell you everything you need to know.
What Is a Computer Health Score and How Is It Calculated?
Some diagnostic tools give your computer an overall health score. Here's what goes into that number, what it means, and what to do if yours is low.
Should I Upgrade My Computer or Buy a New One? How to Decide
A new computer costs hundreds of pounds. But sometimes a £50 upgrade will make your existing machine feel brand new. Here's how to work out which is right for you.
How to Use Windows Task Manager to Fix a Slow Computer
Windows Task Manager is one of the most powerful free tools on your computer — and most people have never used it properly. Here's a complete guide.
How to Use Mac Activity Monitor to Diagnose Problems
Activity Monitor is Mac's built-in diagnostic tool. Here's how to use it to find what's slowing your Mac down, identify runaway processes and check memory pressure.
How Much Storage Do I Actually Need on My Computer?
Confused about how much storage to buy? Here is a straightforward guide to working out exactly how much space you need and how to make the most of what you have.
What Is RAM and How Much Do You Need in 2026?
RAM is one of the most talked-about computer specs — but most people are not sure what it actually is or how much they need. Here is the plain English answer.
How to Improve Your WiFi Signal at Home
Weak WiFi is one of the most common tech frustrations. Here are practical steps to improve your signal strength without spending a fortune on new equipment.
How Often Should You Restart Your Computer?
Most people either restart too rarely or too often. Here is the truth about how frequently you should restart your computer and why it matters.
Why Is My Computer Making Noise? Common Sounds Explained
Computers make all kinds of sounds — some completely normal, others serious warning signs. Here is how to tell the difference and what to do about each one.
What Is a Firewall and Do You Actually Need One?
Most people have heard of firewalls but are not sure what they do or whether they need one. Here is a plain English explanation and why they matter.
How to Make Your Computer Start Up Faster
A slow startup is one of the most common computer complaints. Here is exactly what causes it and how to cut your boot time significantly.
Windows Updates — What They Are and Why You Should Not Skip Them
Windows updates are often ignored or postponed — but doing so leaves your computer vulnerable. Here is what they do and why keeping up to date matters.
How to Check Your Computer Temperature and What the Numbers Mean
Monitoring your computer temperature can reveal problems before they cause damage. Here is how to check it and what the readings actually mean.
Are Browser Extensions Slowing Down Your Computer?
Browser extensions are one of the most overlooked causes of a slow computer. Here is how to find which ones are the problem and what to do about it.
How to Password Protect Your Computer Properly
A password on your computer is only as strong as how you set it up. Here is how to do it properly and why the details matter more than most people realise.
What Is CPU Throttling and Is It Happening to Your Computer?
CPU throttling silently slows your computer down without any obvious warning. Here is what it is, why it happens, and how to tell if it is affecting you.
What Is Cache and Why Should You Clear It Regularly?
Cache files are created to speed things up but can end up doing the opposite. Here is what cache actually is and when clearing it will help.
Laptop vs Desktop — Which Should You Buy?
Choosing between a laptop and a desktop is one of the most common tech decisions. Here is a straightforward guide to help you make the right choice for your situation.
Computer Running Slow After a Windows Update? Here is Why
A Windows update that leaves your computer slower than before is a common frustration. Here are the reasons it happens and how to fix it.