A laptop that once felt quick can slowly turn into a test of patience. Apps take ages to open, the fan sounds like a hairdryer, and even a simple web page seems to load in slow motion. Before you start shopping for a replacement, it is worth knowing that most slow laptops are not broken — they are cluttered, overheated, out of date, or running too much at once.
In this guide, you will learn how to speed up a slow laptop with ten fixes that actually work, ordered from the quickest and easiest to the more involved upgrades, so you can stop as soon as your laptop feels fast enough again.
Why Is My Laptop So Slow?
A laptop usually slows down for a small number of common reasons: too many programs starting at switch-on, a nearly full storage drive, an old hard drive instead of a solid-state drive, too little memory, dust and heat, out-of-date software, or malware running quietly in the background. Noticing the pattern helps: a hot, loud laptop may need cleaning, while one that is slow only in the browser may need fewer tabs and extensions. Learning how to speed up a slow laptop starts with finding the cause, not buying a new one.
Before You Start: Back Up Your Files
Save your open work and, if you can, back up anything you cannot afford to lose. The fixes here are low risk, but a backup is good practice before any system change. Then plug the laptop into mains power and close any apps you do not need right now.
1. Restart Your Laptop Properly
It sounds too simple to work, yet a proper restart is often the fastest fix of all. Many people close the lid and let the laptop sleep for days or weeks, so temporary files build up, small errors linger, and updates wait to finish. Choose Restart from the Start menu on Windows or the Apple menu on a Mac, rather than just shutting the lid. Give the laptop a minute to settle, then see how it feels. If it is noticeably quicker, a restart once or twice a week is a habit worth keeping.
2. Close Apps and Browser Tabs You Are Not Using
Every open app and browser tab uses memory, even when you are not looking at it. Twenty tabs, a music app, a video call, and a large spreadsheet can easily overwhelm a laptop with limited memory. Close the tabs you no longer need, bookmark the pages you want to return to, and quit apps instead of leaving them running. On Windows, Task Manager shows which apps use the most memory and processor power. On a Mac, Activity Monitor does the same job.
3. Stop Unnecessary Programs From Starting Up
Many programs set themselves to start automatically when you switch the laptop on, even if you only use them once a month. Each one adds seconds to your start-up time and keeps using resources afterwards. On Windows, open Settings, then Apps, then Startup, and switch off anything you do not need immediately. On a Mac, go to System Settings, then General, then Login Items, and remove the apps you do not need at login. Leave security software switched on.
4. Uninstall Software You No Longer Use
Over time, laptops collect trial software, old games, duplicate utilities, and programs that came pre-installed and were never opened. Some run background services and take up a surprising amount of storage. Go through your installed apps and remove anything you recognise and no longer use, one app at a time. Do not remove anything you do not recognise without checking what it does first. Drivers and system tools should usually stay.
5. Free Up Storage Space
A nearly full drive can slow a laptop down, because the system has little room for temporary files, updates, and virtual memory. Try to keep at least 15 to 20 per cent of your drive free. Start with the easy wins: empty the Recycle Bin or Bin, delete downloads you no longer need, and remove large video files you have already backed up elsewhere. Microsoft explains these steps on Microsoft Support, and Apple provides similar guidance on Apple Support.
6. Clean Out Dust and Let It Breathe
If your laptop feels hot, the fan runs loudly, or performance drops after a while, dust may be blocking the vents and making the processor slow itself down to avoid overheating. Switch the laptop off and unplug it, then gently clean the keyboard and vents with a soft brush or a can of compressed air held upright, following the instructions on the can. Do not use a vacuum cleaner, and do not open the laptop unless you are confident doing so. Where you use it matters too: a laptop on a bed or sofa can block its air intakes, while a hard, flat desk lets air flow freely.
7. Update Your Operating System and Drivers
Updates are easy to postpone, but they often include performance improvements and security fixes. Check for Windows Update or macOS Software Update, install the available updates, and restart when asked. Then update your most-used apps, especially your web browser. Out-of-date graphics drivers can also cause sluggish video, so check your laptop manufacturer’s support site for driver updates for your exact model.
8. Scan for Malware and Unwanted Software
Malware and unwanted programs can run in the background, show unwanted adverts, and use a large share of your processor. Run a full scan with the security software that came with your system, such as Windows Security on Windows or the built-in protections on a Mac, and make sure it is up to date. If the scan finds something, follow its instructions to remove it, then restart. Avoid free “speed booster” tools from unfamiliar websites, because many of them are the very unwanted software you are trying to remove.
9. Tame Your Web Browser
For many people, the browser is the slowest part of the laptop, because it holds dozens of tabs, extensions, and saved data. Close tabs you do not need and remove extensions you do not recognise or no longer use. Clear cached data occasionally, but remember that this can sign you out of some websites. Google provides browser help on Google Chrome Help. Once the browser is running well, our guide to internet search tips for better Google results will help you find answers faster.
10. Upgrade to an SSD and Add More Memory, If Your Laptop Allows It
If the software fixes have helped but the laptop is still slow, a hardware upgrade may be the answer. Replacing an old mechanical hard drive with a solid-state drive, known as an SSD, is usually the biggest single improvement you can make: apps open faster and the laptop starts in seconds rather than minutes. Adding more memory, or RAM, can also help if you often have many apps open at once. Not every laptop can be upgraded, so check your manufacturer’s support pages for your exact model before buying anything. If you are not comfortable opening a laptop, a reputable local repair shop can fit an SSD and move your files across. Always back up first.
When Should You Repair, and When Should You Replace?
A laptop that is five or six years old, still runs the software you need, and feels fast after the fixes above is usually worth keeping. Consider a replacement if the battery is failing, the laptop no longer receives security updates, or it cannot run the apps you need. An SSD upgrade often costs far less than a new laptop, so it is a sensible middle step. If you do replace it, move your files, sign out of your accounts, and recycle the old laptop responsibly.
How to Speed Up a Slow Laptop and Keep It Fast
Once your laptop is fast again, restart it regularly, remove apps and files you no longer need, check for updates, and keep the vents clear. Keep your browser tidy, with only the extensions you actually use. A few minutes a month is far easier than a full afternoon of troubleshooting. For more small changes, see our collection of 50 tips and tricks that actually work.
Frequently Asked Questions
Why is my laptop slow all of a sudden?
A sudden slowdown is often caused by a recent update, a new app running in the background, a full storage drive, or overheating. Restart the laptop and check Task Manager or Activity Monitor for the app using the most resources.
Will adding more RAM speed up my laptop?
More memory can help if you regularly have many apps and browser tabs open. If you have an old hard drive, however, upgrading to an SSD usually makes a bigger difference first.
Does a factory reset make a laptop faster?
A factory reset can make a laptop feel faster because it removes clutter and unwanted software, but it also erases your files and apps. Try the fixes in this guide first, and only reset after a full backup.
How much free storage should I keep on my laptop?
Try to keep at least 15 to 20 per cent of your drive free, so the operating system has room for updates, temporary files, and virtual memory.
Is it worth upgrading an old laptop, or should I buy a new one?
It is often worth it if the laptop is in good condition and an SSD upgrade makes it fast enough for everyday work. Buy a new one if it no longer gets security updates or has failing hardware that would cost more to repair than it is worth.
Most slow laptops do not need replacing — they need a restart, a tidy-up, and a little care. Now that you know how to speed up a slow laptop, work through the ten fixes above in order, starting with the quick ones, and your laptop should feel like itself again.
