Over time, any Windows computer starts to slow down. Junk files, leftover apps, browser cache, and unnecessary startup programs can all make your PC feel sluggish. While you can clean up a computer manually, using a reliable PC cleaner program can save time and keep your system running smoothly.
Here’s a look at some of the best free PC cleaner tools you can use on Windows 10 and Windows 11.
1. CCleaner (Free Version)
-
One of the most popular cleaners worldwide.
-
Cleans temporary files, browser history, and cache.
-
Also includes a startup manager and uninstaller.
⚠️ Note: The free version is great, but avoid unnecessary “upgrade” pop-ups.
2. BleachBit
-
100% free and open-source.
-
Lightweight but powerful.
-
Cleans browser junk, cache, logs, and temp files.
-
Trusted by advanced users who want transparency and no bloat.
3. Wise Disk Cleaner
-
Cleans temporary files and system junk.
-
Has a Disk Defrag tool for HDD users.
-
Easy interface, good for beginners.
4. Advanced SystemCare (Free)
-
More than just a cleaner: includes optimization tools.
-
Cleans junk files, fixes registry issues, and optimizes startup.
-
The free version has ads for Pro, but still useful.
5. Microsoft’s Built-in Tools
You don’t always need third-party apps. Windows already has:
-
Storage Sense (Settings > System > Storage) – automatically removes temporary files.
-
Disk Cleanup – classic tool to delete old updates, cache, and temp files.
Tips for Safer Cleaning
-
Always back up before using advanced cleaning tools.
-
Don’t overuse registry cleaners — they usually don’t make your PC faster.
-
Run cleanup once a month to keep things smooth.
Conclusion
If your Windows 10 or 11 computer feels slow, a good PC cleaner app can help remove junk files and optimize performance. For most users, CCleaner or Wise Disk Cleaner is a simple choice, while power users may prefer BleachBit. And don’t forget — Windows already includes useful cleanup tools built in.
Explore other helpful tools in our Windows utilities section.
