If your PC feels sluggish or your games are stuttering, it’s probably time to look at what your CPU is doing. In this guide, we’re walking through practical tips to optimise CPU usage and get your system running smoothly.
PCs often end up doing more work than we realise. Background processes, apps running without you noticing, and even malware can keep your processor busy. Optimising CPU usage is not just about squeezing out extra performance. It also keeps your system cooler, quieter, and more responsive. In this guide, we will cover simple fixes, smart tweaks, and preventative steps to get your CPU under control.
Why You Should Optimise CPU Usage
Your CPU is at the heart of everything your PC does, so when it is under unnecessary load, the whole system feels it. High CPU usage can lead to slower performance, stuttering in games, longer load times, louder fans, and higher temperatures. Over time, that extra strain can even impact system stability and component lifespan.
Optimising CPU usage is about making sure your processor is working on what actually matters. By cutting out background clutter and fixing common issues, you can free up resources for gaming, productivity, and everyday tasks, helping your PC feel faster, stay cooler, and feel more responsive without spending a penny on new hardware.
How To Optimise Your CPU Usage
Alright, so now we get into the practical part. If your PC is running hot, loud, or just not performing how it should, these are the simple steps you can take to bring CPU usage back under control. You do not need specialist tools or deep system knowledge, just a bit of time and a few smart checks.
A good place to start is making sure your operating system, software, and drivers are all fully up to date. Outdated system files, apps, or drivers can cause unnecessary CPU load, create conflicts, or even trigger background tasks that slow your PC down. Keeping everything current is a quick, easy step that often fixes small performance issues before they become bigger problems.
Once your software is up to date, a few routine checks can make a huge difference. Closing unused apps, checking background processes, and keeping your system tidy can all reduce CPU load, improve responsiveness, and even help your PC run cooler and quieter. With these steps, you’re already on the way to getting the most out of your processor without touching anything complicated.
Check and Close Background Processes
High CPU usage often comes from apps quietly running in the background that you do not actually need. Even minimized programs, launchers, updaters, or multiple browser tabs can add unnecessary load to your processor.
Open Task Manager and take a look at what is keeping your CPU busy. Close anything you’re not actively using, especially launchers, updaters, or browser tabs that have been left open. This is a quick win and often the fastest way to reduce CPU usage straight away.
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Check for Malware and Background Scans
Sometimes, high CPU usage has nothing to do with what you are actively running. Malware, unwanted background tools, or overly aggressive security scans can quietly eat up processing power. Running a full antivirus and malware scan is an easy win and can often uncover hidden issues. It is also worth checking your security software schedule, as scans kicking in while you are gaming or working can cause sudden CPU spikes.
Do a Cheeky Little Upgrade
If it’s been a hot minute since your PC last saw an upgrade, then maybe it’s time to give yourself the upgrade you deserve. Whether you fancy a CPU upgrade or even a whole new gaming PC, Overclockers UK has your back!
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- 4 min read
Robert Mullane
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When not working, you'll find me in VR or losing in bottom-tier Valorant matches. I write about all topic's tech and gaming with a particular focus on representation in gaming, virtual reality, and LGBTQ+ themes. If you're still not fed up with me, you can also catch me over on the Overclockers UK TikTok and YouTube accounts.
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