Common Issues We Diagnose
Is your computer doing any of these? Our Sydney technicians diagnose the root cause and fix it on-site.
Computer Running Painfully Slow
Insufficient RAM, failing HDD, bloatware, or malware dragging your system down. We find the bottleneck.
Random Crashes & Blue Screens
Hardware faults, driver conflicts, and overheating causing unexpected shutdowns and BSOD errors.
Computer Freezing Up
Memory leaks, disk issues, and software conflicts causing your system to lock up and become unresponsive.
Strange Error Messages
System errors, missing DLLs, and registry problems generating confusing pop-ups and warnings.
Programs Not Responding
Application conflicts, insufficient resources, and corrupted installations causing apps to hang or crash.
Computer Taking Forever to Start
Startup bloat, failing drive, or OS corruption making your boot time painfully long.
Overheating & Loud Fans
Dried thermal paste, dust buildup, and fan failures causing your computer to run hot and noisy.
Computer Making Strange Noises
Hard drive failure warnings, fan bearing wear, and coil whine diagnosed before data loss occurs.
Our Troubleshooting Services
Comprehensive diagnostic and repair services to get your computer running like new.
Complete System Diagnostics
Full hardware and software analysis to identify every issue affecting your computer's performance.
Performance Optimisation & Cleanup
Remove bloatware, clean temp files, optimise startup programs, and restore peak speed.
Hardware Health Assessment
Test RAM, hard drive, CPU, GPU, and motherboard to detect failing components before they break.
Software Conflict Resolution
Identify and resolve driver conflicts, incompatible programs, and corrupted system files.
Startup Speed Optimisation
Slash boot times by managing startup programs, services, and scheduled tasks.
RAM & Storage Upgrades
Boost performance with more RAM and faster SSD storage — installed and configured on-site.
Operating System Repair
Fix Windows and macOS corruption, update failures, and boot loop issues without data loss.
Preventive Maintenance & Tuneup
Regular health checks, cleaning, updates, and optimisation to keep problems from coming back.
How It Works
Three simple steps to diagnose and fix your computer today.
Book Online or Call
Tell us what's going wrong with your computer. Book online in 60 seconds or call us directly.
We Diagnose On-Site
Our technician arrives at your home or office and runs a full diagnostic to find the root cause.
Fixed & Optimised
We fix the problem and optimise your system for peak performance. No fix, no fee guarantee.
Why Choose Geek Sydney
Sydney's most trusted computer troubleshooting team. Here's what sets us apart.
Root Cause Diagnosis
We don't just fix symptoms. Our technicians trace every issue back to its root cause so it doesn't come back.
Same-Day Service
Book before 2pm for same-day computer troubleshooting anywhere in Sydney.
Performance Guarantee
We guarantee a noticeable improvement in your computer's performance after our service.
No Fix, No Fee
If we can't diagnose or fix your computer problem, you pay nothing. Zero risk.
Frequently Asked Questions
Everything you need to know about our Sydney computer troubleshooting service.
Common causes include insufficient RAM, failing hard drive, malware, too many startup programs, or an outdated OS. We diagnose the exact cause on-site.
Often yes! An SSD upgrade and RAM increase can dramatically improve an older computer's performance for a fraction of replacement cost.
Most diagnostics are completed within 1 hour. Fixes depend on the issue but most are same-day.
We'll give you an honest assessment. If repair costs exceed the value, we'll recommend the best replacement options.
Yes, we troubleshoot both Windows PCs and Macs. See our Apple Mac Support page for dedicated Mac services.
Startup optimisation, disk cleanup, malware scan, driver updates, and performance assessment with recommendations.
Computer Troubleshooting Across Sydney
On-site computer diagnostics and troubleshooting in all Sydney suburbs.