Is your PC crawling along? Before buying a new machine, try these five fixes first — most take just a few minutes and cost nothing. Chances are at least one of them will make a noticeable difference today.
1. Disable Unnecessary Startup Programmes
Too many programmes launching at boot is the number one cause of a slow PC — and most people have no idea how many are quietly running in the background. Press Ctrl + Shift + Esc, click the Startup tab, then right-click anything with High or Medium impact and hit Disable. Restart and you should notice a quicker boot straight away. Typical offenders include Spotify, Teams, Discord, and OneDrive — none of these need to launch automatically, and you can always open them manually when you actually need them.
2. Free Up Disk Space
When your hard drive gets too full — particularly below 10–15% free space — Windows struggles to function properly and slows right down. Type Disk Cleanup in the Start menu, select your C: drive, tick everything, then click Clean up system files for a deeper sweep. While you’re at it, uninstall any programmes you haven’t touched in months via Settings > Apps. Old games and forgotten installs can quietly hog tens of gigabytes, and clearing them out costs nothing.
3. Upgrade to an SSD
Still on a spinning hard drive? An SSD is the single biggest speed boost you can give any PC — boot times drop from minutes to seconds, and everything from opening apps to saving files feels dramatically snappier. SSDs are affordable these days, and most desktop and laptop upgrades are straightforward. If you already have one, use the free CrystalDiskInfo tool to check it’s still in good health.
4. Scan for Malware
A PC that suddenly slows down often has something running in the background that shouldn’t be. Run a full scan with Windows Defender, then follow up with a free Malwarebytes scan to catch any adware or browser hijackers it might miss. Also take a look at your browser extensions and remove anything you don’t recognise — these are a surprisingly common source of slowdowns.
5. Check Your RAM
When RAM runs out, Windows uses your hard drive as a substitute — a process called paging — and performance grinds to a crawl. Open Task Manager, click the Performance tab, and check your memory usage. If you’re regularly sitting above 80%, it’s time to act. Closing unused browser tabs is a quick win (each one can use 100–300MB), and on most laptops a RAM upgrade is inexpensive and easy to do yourself.
The Bottom Line
Start with the free fixes — disabling startup programmes, clearing disk space, and running a malware scan. These alone can make a years-old machine feel noticeably quicker, and they take less than half an hour combined. If you’re still struggling after that, an SSD or RAM upgrade will breathe years of extra life into your PC without the cost of replacing it entirely. Either way, there’s no reason to put up with a slow computer when the solution is usually just a few clicks away.