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CharlesTurner's avatar
CharlesTurner
Iron Contributor
Jan 03, 2026

Can you recommend the best pc cleaner for windows 11?

Hi all, I upgraded my PC to Windows 11 25H2 recently and since then my PC has been running extremely slow (boot takes forever, apps lag, and even File Explorer feels delayed). I'm wondering if a PC ...
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TannerOakridge's avatar
TannerOakridge
Iron Contributor
Jan 04, 2026

Your concerns are very valid—many PC cleaners out there can do more harm than good, especially if they're sketchy or overly aggressive. For Windows 11, What is the best PC cleaner for Windows 11? The best approach is to focus on proven, safe methods to clean up junk files and optimize performance without risking system stability.

Recommended Safe and best PC cleaner for Windows 11
1. Built-in Windows Tools

a. Storage Sense & Disk Cleanup

Use Storage Sense:
Settings > System > Storage > Turn on Storage Sense. It automatically cleans temporary files, system cache, and recycle bin contents.
Run Disk Cleanup manually:
Search for "Disk Cleanup" > Select your drive > Check categories like Temporary Files, Recycle Bin, Thumbnails > Clean.

b. Optimize Startup Programs

Task Manager > Startup tab > Disable unnecessary apps that launch at boot.
c. Check for Windows Updates

Settings > Windows Update > Check for updates. Keeping Windows up-to-date can fix bugs and improve performance.
 
2. Manual Cleanup Tips for Best Results

  1. Clear Temporary Files:
    Settings > Storage > Temporary Files.
  2. Delete Unnecessary Apps & Files:
    Uninstall unused programs via Settings > Apps.
    Manually delete large files you no longer need.
  3. Optimize Your Disk:
    Search for "Defragment and Optimize Drives" > Optimize your SSD or HDD.
  4. Check for Malware:
    Run Windows Security (Windows Defender) full scan to rule out malware slowing down your PC.
  5. Disable Unnecessary Background Apps:
    Settings > Privacy > Background Apps.