How-To Guide
How to Test Your Laptop Keyboard Online (Free)
Press every key and see which ones register on screen. Identify stuck, broken, or unresponsive keys in under two minutes.
TestMyPC Blog
Guides, Tips & Fixes for Your Laptop Hardware
Step-by-step guides to test and fix your laptop keyboard, webcam, microphone, sound, and trackpad — free online tools, no downloads needed.
All Articles
How-To Guide
Webcam Not Working? Test It Free Online
A 30-second browser test tells you instantly whether your camera hardware is working — or if the problem is in your app or settings.
How-To Guide
How to Check If Your Microphone Is Working
A browser-based mic test gives you immediate, visual feedback — watch the meter respond when you speak and know instantly if your mic works.
How-To Guide
Sound Not Working on Laptop? Test It Online
If you hear sound in the browser test, the hardware is fine. If not, follow the targeted fixes for drivers, output devices, and audio services.
How-To Guide
How to Test Your Trackpad (Fix Cursor Issues)
Watch exactly what your touchpad is detecting — every touch, tap, and gesture — in real time. Identify cursor issues before attempting any fix.
Utility
Best Free Online Timer Tool (Simple & Accurate)
Perfect for Pomodoro study sessions, meetings, workouts, and cooking. Opens instantly in your browser with no downloads or account needed.
Fix Guide
Why Your Laptop Keyboard Stops Working (Fix Guide)
The pattern of which keys fail tells you everything. Run a quick keyboard test, then follow the targeted fix for software, debris, or hardware causes.
Fix Guide
How to Fix Webcam Not Working (Windows & Mac)
Complete cross-platform guide covering privacy settings, driver updates, app-specific fixes, and hardware diagnosis for both Windows and Mac.
Fix Guide
Microphone Not Working? Quick Fix + Test Guide
Covers all common causes — permissions, wrong input device, driver issues, and app-specific fixes for Zoom, Teams, and Discord.
Full Guide
Complete Laptop Test Guide (Keyboard, Sound, Camera)
Five tests. Seven minutes. Full peace of mind. The essential pre-flight checklist before a presentation, exam, sale, or purchase.
How-To Guide
Dead Pixel Test: Find & Fix Dead Pixels Online (Free)
To run a dead pixel test, display solid full-screen colours — white, black, red, green and blue — and scan the screen for dots that stay dark or stuck on one colour.
How-To Guide
Monitor Test Online: Check Colours, Sharpness & Pixels
To test a monitor online, open a browser-based screen test and check five things: solid colours for dead pixels, gradients for colour banding, a dark screen for backlight bleed, a sharpness grid for focus and scaling, and fast motion for ghosting.
How-To Guide
What Is a Good Internet Speed? UK Results Explained
For most UK households, 30–50 Mbps download is comfortable for streaming and video calls, 100+ Mbps suits busy families and 4K streaming on several screens, and 500 Mbps or more is only necessary for very heavy use.
How-To Guide
Test Headphones Online: Left/Right Audio & Sound Check
To test headphones online, plug them in, open a browser-based sound tester and play the left and right channels separately.
How-To Guide
Check Your Webcam & Mic Before a Video Interview
Five minutes before any video interview: test your webcam in the browser to check framing and lighting, speak into a microphone tester to confirm levels, run a quick internet speed test (3+ Mbps upload keeps video smooth), and open your meeting app's device settings to confirm the right camera and mic are selected.
Fix Guide
Mouse Double-Clicking on Its Own? Test It & Fix It
A mouse that double-clicks on a single press almost always has a worn micro-switch that 'bounces' — sending two signals instead of one.
Fix Guide
No Sound on Windows 11? 10 Fixes That Actually Work
When Windows 11 has no sound, first run a browser sound test to confirm the problem, then check the output device (click the speaker icon and confirm the right device is selected), unmute and raise the volume mixer, and restart.
Fix Guide
Second Monitor Not Detected? Here's How to Fix It
When a second monitor isn't detected, check the basics in order: power and cable fully seated at both ends, the monitor set to the correct input source, Win+P set to Extend (not PC screen only), then Settings → System → Display → Detect.
Fix Guide
Keyboard Typing Wrong Characters? (@ and " Swapped)
If your keyboard types @ when you press " (or £ gives #), your computer is set to the wrong keyboard layout — usually US instead of UK.
Fix Guide
Microphone Too Quiet? How to Boost Your Mic Volume
A quiet microphone is usually a low input level: on Windows 11 go to Settings → System → Sound → your microphone → raise Input volume (and test); on Mac, System Settings → Sound → Input → raise the slider.
Fix Guide
Camera Not Working in Teams or Zoom? 9 Quick Fixes
If your camera won't work in Teams or Zoom, first test the webcam in your browser — if it works there, the camera is fine and the problem is app permissions or device selection.
Fix Guide
Why Is My Wi-Fi So Slow? 12 Causes and Fixes
Slow Wi-Fi is either slow broadband or slow wireless — and a two-step speed test tells you which: test wired (or right beside the router), then test where you normally sit.
Buying Guide
How Much RAM Do I Need in 2026? Answer by Use Case
In 2026: 8GB is the working minimum for light browsing and office tasks, 16GB is the sweet spot for most people including gamers and home workers, 32GB suits creators, developers and heavy multitaskers, and 64GB+ is specialist territory.
Buying Guide
How to Check Your Laptop Specs (Windows & Mac)
On Windows 11, right-click the Start button and choose System for CPU, RAM and Windows version; press Ctrl+Shift+Esc → Performance for live detail; and type dxdiag for graphics.
Full Guide
Used Laptop Checklist: Test Everything in 10 Minutes
Before buying any used laptop, test the hardware in person with free browser tools: every key on the keyboard, the trackpad, the screen (dead pixels and backlight), webcam, microphone, speakers, Wi-Fi speed and battery behaviour — plus a specs check to verify the listing.
Buying Guide
SSD vs HDD: Is Upgrading Your Laptop Worth It?
If your laptop still runs on a mechanical hard drive (HDD), swapping it for an SSD is the single biggest upgrade in computing: boots drop from minutes to seconds, apps open near-instantly, and the whole machine feels new.
Buying Guide
How Long Do Laptops Last? Signs It's Time to Upgrade
Most laptops last 4–6 years of daily use; well-built machines that are looked after stretch to 8 or more.
Buying Guide
Laptop Battery Health: How to Check It (Windows & Mac)
On Windows, open Command Prompt and run powercfg /batteryreport — the saved report compares your battery's design capacity with its current full-charge capacity; the gap is your wear.
Free Diagnostic Tools
All tests run directly in your browser — no installs, no account, no fuss.