Windows 10 is still widely used today, even as Windows 11 continues rolling out on newer machines.

Many people stay on Windows 10 because it’s stable, familiar, and compatible with older systems. The downside is that Windows 10 can slow down over time. Programs take longer to open, the system feels heavy, or the browser lags.

Before deciding to upgrade hardware or replace your computer altogether, it’s worth trying several free adjustments that can noticeably improve system performance.

If your computer holds important files, create a restore point first. That gives you a fallback if you need to revert to previous settings.

Clear Out System Clutter and Background Load

1. Clear the Temp Folder

Windows stores temporary files to help programs run, but those files are rarely cleaned automatically. Over time, they pile up and slow everything down. Open the Start menu, type %temp%, press Enter, and delete everything inside. If some files can’t be deleted because they’re in use, skip those. This is often one of the quickest ways to regain space.

2. Remove Microsoft Office Add-Ins You Don’t Need

Programs like Outlook, Word, and Excel often have add-ins installed in the background. These can slow startup and make each program feel heavier. In any Office program, go to File > Options > Add-Ins. Select COM Add-Ins and click Go. Disable anything unfamiliar or unused. Restart the application afterward.

3. Disable Unnecessary Browser Extensions

Browsers slow down when too many extensions run at once. In Chrome or Edge, go to Settings > Extensions and disable anything you don’t actually use. If you removed Office add-ins, removing browser extensions pairs well with it — both reduce constant background resource use.

4. Turn Off Startup Programs

Programs often set themselves to launch every time your computer starts, even if you only need them occasionally. This slows your system the moment you log in. Open Startup Apps from the Start menu and turn off anything nonessential. This can drastically improve boot time.

Keep Software Current and Hardware Drivers Running Clean

5. Run Windows Updates

System updates don’t just add features — they often improve stability and performance. Opening Check for updates and installing available updates ensures your PC is running current system components.

6. Manually Update Device Drivers

Some drivers don’t update automatically, especially graphics cards, network adapters, and input devices. Open Device Manager, right-click each device, and choose Update driver. Select Search automatically. This ensures your hardware communicates with your system efficiently.

7. Clear Browser Cache and Stored Data

Browser cache accumulates over time. Press Ctrl + Shift + Delete in your browser and clear images, cookies, and stored data. Choose All time for a full reset. This helps especially if your browser hesitates when loading pages.

Reduce Background Processes

8. Disable Services You Don’t Use

Windows runs dozens of background services. Many are essential, but some are linked to features you may never use—like remote registry access, fax support, or Xbox-related services if you’re not a gamer. Open Services from the Start menu to review what’s running. Look up each service before adjusting anything. The goal is to reduce background load without disabling anything critical.

9. Restart Periodically

If your computer stays on for weeks at a time, memory can fragment and temp data builds up. Restarting the system helps clear RAM and refresh background processes. Restart once every few days for best performance.

10. Scan for Malware or Unwanted Software

Even if everything appears normal, occasional scans are smart. Malware and unwanted programs often consume resources quietly. Use Windows Security or a reputable antivirus. Run a full scan, not just a quick scan. Remove anything flagged.

Improve Efficiency and Free Up Space

11. Switch to High Performance Power Mode

Windows may be running on Balanced or Power Saver mode, which reduces performance to conserve energy. Search Power & sleep settings → Additional power settings → choose High performance. This improves responsiveness but may use more power.

12. Use Disk Cleanup to Remove Old System Files

Disk Cleanup can remove downloaded program files, cached data, update leftovers, and more. Type Disk Cleanup in the Start menu, choose your main drive, and select the categories to remove. This is a simple, centralized way to clean up system clutter.

13. Delete Files You Don’t Need

Files accumulate over time, especially in Downloads, Documents, and Desktop. Deleting old files or moving long-term storage items to an external drive helps free space and reduce search and indexing load. The improvement may be gradual but noticeable.

14. Empty the Recycle Bin

Deleting files doesn’t remove them from your drive until the Recycle Bin is emptied. Right-click the Recycle Bin and select Empty Recycle Bin to reclaim the space.

If Needed, Consider a Small Hardware Upgrade

15. Add More RAM

This isn’t free, but it’s often the most cost-effective way to revive a slow computer. If the computer struggles when multiple apps or tabs are open, adding RAM can make the system feel new again, without replacing the entire machine.

Final Thoughts

Windows 10 doesn’t need to feel sluggish.

Performance issues often come from buildup rather than age. Clearing temporary files, removing auto-running programs, updating software, reviewing services, and doing occasional maintenance can restore speed without spending money.

Start with the free adjustments first. Make small changes, test performance, and see how the system responds. Often, a few careful adjustments are enough to make your computer feel quicker and more responsive again.