Why Your Computer Is Running Slow in 2025
(And How to Fix It in Canberra)
5 min read
Canberra, ACT
Is your laptop taking forever to boot up? Does opening Outlook feel like waiting for a bus in the rain? You aren’t alone. We receive dozens of calls every week about slow PC fix Canberra requests from Gungahlin to Tuggeranong.
In 2025, software demands are higher than ever. With Windows 11’s new AI features and heavier browser updates, computers that were fast three years ago are starting to struggle. Here are the most common culprits and how to tackle them.
1. The “Startup Overload” Trap
Every time you install a new app—Zoom, Spotify, Teams—it likely sets itself to launch automatically when you turn on your PC.
Quick Fix:
Press Ctrl + Shift + Esc to open Task Manager. Click the “Startup” tab and disable high-impact apps you don’t need immediately.
2. Hidden Malware & Crypto-Miners
Modern viruses don’t just delete files; they run silently in the background, stealing your processing power to mine cryptocurrency or serve ads. This is a common issue we see in computer repairs Canberra jobs, especially for users who download free software.
If your fans are spinning loudly even when you aren’t doing anything heavy, you might be infected. A simple antivirus scan often isn’t enough to catch advanced rootkits.
3. The Silent Killer: Old Hard Drives (HDD)
If your computer was bought before 2020, it might still have a spinning Hard Disk Drive (HDD). In 2025, running Windows 11 on an HDD is practically impossible due to the high read/write speeds required by the OS.
When to Upgrade to an SSD
Replacing an old HDD with a Solid State Drive (SSD) is the single most effective upgrade you can make. It can make a 5-year-old laptop feel faster than a brand new budget PC.
- Boot Time: Drops from 2 minutes to 15 seconds.
- App Loading: Instant vs. sluggish.
- Cost: Much cheaper than buying a new computer.
When to Call a Professional
Sometimes, DIY fixes aren’t enough. You should consider booking a professional computer repair in Canberra if:
- You suspect a deep virus infection or ransomware.
- You need to clone your data to a new SSD without losing files.
- Your computer is overheating or making grinding noises.
Need a Speed Boost?
Tech Fixer comes to you. We service all Canberra suburbs including Belconnen, Woden, and Queanbeyan.
Tech Fixer Team
Canberra Local Experts
Helping Canberra locals with friendly, onsite IT support since 2015. We don’t use geek speak—just plain English solutions.
We Service Your Area
Common Questions
How much to fix a slow PC?
Our diagnosis and tune-up service starts from a standard hourly rate with no call-out fee for Metro Canberra. Hardware upgrades (like SSDs) are quoted upfront.
Is it worth fixing a 7-year-old laptop?
If it has an Intel i5 processor or better, yes! An SSD upgrade is much cheaper than a new computer and can extend its life by another 3-4 years.