Laptop Running Slow? 9 Fixes Before You Buy a New One

A laptop that takes forever to start and stutters through simple tasks is one of the most common — and fixable — tech frustrations. Before you spend money on a new one, work through these nine fixes. Most are free and take minutes.

1. Restart properly

Many people only close the lid. A full restart clears memory and stuck processes — often the single fastest fix.

2. Trim startup programs

Too many apps launching at boot make startup crawl. On Windows, open Task Manager → Startup and disable what you don't need. On Mac, check System Settings → Login Items.

3. Free up disk space

A nearly full drive slows everything. Delete old files, empty the trash, and remove programs you don't use. Aim to keep at least 10–15% free.

4. Close background apps

Check Task Manager (Windows) or Activity Monitor (Mac) to spot apps hogging memory and CPU, and close the ones you're not using.

5. Tame your browser

Dozens of open tabs and heavy extensions eat memory fast. Close unused tabs, remove extensions you don't need, and clear the cache.

6. Update and scan for malware

Install pending system updates and run a malware scan — hidden malware is a common cause of sudden slowdowns.

7. Check your power settings

On battery-saver mode, laptops throttle performance. When plugged in, switch to a balanced or high-performance profile.

8. The upgrade that changes everything

If your laptop still uses an old spinning hard drive (HDD), replacing it with an SSD, or adding more RAM, can make a five-year-old machine feel new — for a fraction of a new laptop's price.

9. A fresh start

When nothing else works, back up your files and reset the operating system for a clean slate. The same logic as fixing a slow phone: clear the clutter, restore the speed.

Frequently asked questions

Why is my laptop so slow all of a sudden?

Common causes are a full disk, too many startup and background programs, a heavy browser, pending updates, or malware.

Will adding an SSD or RAM speed up an old laptop?

Dramatically, in most cases. Swapping an old hard drive for an SSD is the single biggest speed upgrade for older machines.

Is it worth fixing a slow laptop or buying new?

If it's only slow (not broken), an SSD/RAM upgrade is usually far cheaper than replacing it.