Microsoft lists the usual reasons a Windows PC slows down: too little storage, too many apps starting with Windows, outdated software, and hardware that no longer keeps up. Work through these fixes in order.
1. Restart properly
If you only ever close the lid, Windows may not fully restart for weeks. Use Start → Power → Restart.
2. Stop apps starting with Windows
Press Ctrl + Shift + Esc to open Task Manager, go to Startup apps, and disable anything you do not need at startup (chat apps, updaters, game launchers). Microsoft recommends this.
3. Free up storage
- Turn on Storage Sense (Settings → System → Storage) to clear temporary files automatically.
- Uninstall programs you do not use (Settings → Apps → Installed apps).
- Move photos and videos to an external drive or the cloud.
- Microsoft also suggests its free Microsoft PC Manager app for cleanup and startup management.
4. Update Windows and drivers
Settings → Windows Update → Check for updates. Install optional driver updates too.
5. Scan for malware
Open Windows Security → Virus & threat protection and run a scan. Malware can slow everything down. See free antivirus for Windows.
6. Check the power mode
Settings → System → Power & battery → Power mode. “Best performance” makes the laptop faster, but Microsoft notes it drains the battery faster and can run warmer. Plug in when using it.
7. Cut down browser tabs and extensions
Dozens of open tabs and extensions use a lot of memory. Close what you do not need and remove unused extensions.
8. Keep it cool and clean
Dust blocks the fan and makes the laptop throttle itself. Use it on a hard surface, not a bed, and have the vents cleaned if the fan is always loud.
Upgrades that make the biggest difference
| Upgrade | Why it helps |
|---|---|
| HDD → SSD | Much faster boot and app loading; often the biggest single improvement |
| 4GB → 8GB RAM | More tabs and apps without freezing |
| Fresh Windows install | Clears years of clutter (back up first) |
Check what your laptop has first: how to check your laptop specifications.
This guide was checked in October 2026. Menus and services change, so if something looks different on your phone, check with your provider.
Common questions
What is the single best upgrade for a slow laptop?
Replacing a hard disk (HDD) with an SSD usually makes the biggest difference to boot and app loading times.
Will more RAM speed up my laptop?
If you have 4GB and run a browser with many tabs, moving to 8GB often helps a lot. Check whether your laptop’s RAM can be upgraded.
Do PC cleaner apps work?
Many are unnecessary or bundle adware. Use Windows’ built-in tools or Microsoft PC Manager.
My laptop runs Windows 10. Is that a problem?
Microsoft ended Windows 10 support on 14 October 2025, so it no longer gets regular security updates. Upgrade if your laptop supports Windows 11.
