How to Clear Temporary and Cache Files in Windows 11

Last Updated: June 2025

Why Your Windows 11 PC Needs Regular Cleanup

Is your Windows 11 computer running slower than usual? Are you constantly seeing “low disk space” warnings? You’re not alone. Over time, Windows 11 accumulates thousands of temporary files, cache data, and system leftovers that can significantly impact your computer’s performance and consume valuable storage space.

In this comprehensive guide, you’ll learn:

• Multiple methods to clear temporary files and cache in Windows 11
• Which files are safe to delete and which to avoid
• How to automate cleanup tasks for ongoing maintenance
• Professional tips to keep your system running optimally

Whether you’re a home user dealing with a sluggish laptop or a business owner managing multiple workstations, this step-by-step tutorial will help you reclaim disk space and boost system performance.

What Are Temporary Files and Why Do They Slow Down Windows 11?

Temporary files are data created by Windows and applications during normal operation. While these files serve important purposes—like speeding up program launches and storing backup data—they can accumulate over time and cause several issues:

Common problems caused by excessive temporary files:

• Slower boot times and application launches
• Reduced available storage space
• System crashes and freezes
• Degraded overall performance
• Increased system errors

Types of files that accumulate in Windows 11:

• Browser cache and cookies
• Windows Update leftovers
• Application temporary data
• System error reports
• Thumbnail cache files
• Delivery optimisation files

Method 1: Clear Temporary Files Using Windows 11 Settings (Recommended)

The easiest and safest way to clear temporary files is through Windows 11’s built-in Settings app. This method is perfect for beginners and provides a user-friendly interface.

Step-by-Step Instructions:

Step 1: Access Storage Settings

1. Press Windows key + I to open Settings
2. Click on “System” in the left sidebar
3. Select “Storage” from the main panel

Step 2: Navigate to Temporary Files

1. Scroll down and click on “Temporary files”
2. Windows will automatically scan your system for deletable files
3. Wait for the scan to complete (this may take a few minutes)

Step 3: Select Files to Remove. Choose from the following categories based on your needs:

Step 4: Complete the Cleanup

1. Review your selections carefully
2. Click “Remove files”
3. Confirm the deletion when prompted
4. Wait for the process to complete

Method 2: Use Disk Cleanup Tool for Advanced Cleaning

For more granular control over file deletion, Windows 11 still includes the classic Disk Cleanup utility. This tool offers additional cleaning options not available in Settings.

How to Use Disk Cleanup:

Step 1: Launch Disk Cleanup

1. Press Windows key + R to open Run dialog
2. Type “cleanmgr” and press Enter
3. Select your primary drive (usually C:) and click OK

Step 2: Select Cleanup Options

1. Wait for the scan to complete
2. Check the boxes for files you want to delete:
   • Temporary files (always safe)
   • Recycle Bin (if you don’t need to restore files)
   • System error memory dump files (safe to delete)
   • Windows Update Cleanup (safe after updates are installed)
   • Thumbnails (will regenerate as needed)

Step 3: Clean System Files (Advanced)

1. Click “Clean up system files” for additional options
2. Select your drive again
3. Choose additional system files to remove:
   • Previous Windows installations
   • Windows Update leftovers
   • Language resource files (if you only use one language)

Step 4: Execute Cleanup

1. Click “OK” to start the cleanup
2. Confirm deletion when prompted
3. Wait for completion

Method 3: Automate Cleanup with Storage Sense

To prevent future accumulation of temporary files, enable Storage Sense—Windows 11’s automatic cleanup feature.

Setting Up Storage Sense:

Step 1: Enable Storage Sense

1. Go to Settings > System > Storage
2. Click on “Storage Sense”
3. Toggle “Storage Sense” to On

Step 2: Configure Cleanup Schedule

1. Click “Configure Storage Sense or run it now”
2. Set cleanup frequency:
   • During low free disk space (recommended)
   • Every day
   • Every week
   • Every month

Step 3: Customize Cleanup Options Configure what gets cleaned automatically:

• Temporary files: Enable for automatic removal
• Recycle Bin: Set to delete files older than 30 days
• Downloads folder: Choose timeline (30 days recommended)
• OneDrive: Manage cloud-only content

Advanced Cleanup Techniques for Power Users

Clear Browser Cache and Data

Browsers accumulate significant cache data over time. Here’s how to clear it:

Microsoft Edge:

1. Press Ctrl + Shift + Delete
2. Select “All time” as time range
3. Check “Cached images and files”
4. Click “Clear now”

Google Chrome:

1. Press Ctrl + Shift + Delete
2. Select “All time”
3. Check “Cached images and files”
4. Click “Clear data”

Clean Windows Registry (Advanced Users Only)

Warning: Only attempt this if you’re comfortable with advanced system maintenance.

1. Press Windows key + R
2. Type “regedit” and press Enter
3. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\RunMRU
4. Delete outdated entries (backup registry first)

Use Command Line for Bulk Cleanup

For advanced users, Command Prompt offers powerful cleanup options:

# Clear temporary files
del /q /f /s %temp%\*.*

# Clear Windows temporary files
del /q /f /s C:\Windows\Temp\*.*

# Clear prefetch files
del /q /f /s C:\Windows\Prefetch\*.*

What Files Should You Never Delete?

While cleanup is beneficial, certain files should never be removed:

Never delete these files:

• System32 folder contents
• Program Files directories
• Windows folder (except Temp subfolder)
• Boot configuration files
• Currently running program files
• User profile data (unless intentional)

How Often Should You Clean Windows 11?

Recommended cleanup schedule:

• Home users: Weekly or bi-weekly
• Business users: Weekly for high-usage systems
• Gaming PCs: After major game installations/updates
• Content creators: Weekly due to large file processing

Signs you need immediate cleanup:

• System running noticeably slower
• Frequent low disk space warnings
• Applications taking longer to launch
• Unexpected system crashes or errors

Measuring Cleanup Success: Before and After

To track your cleanup effectiveness:

Before cleanup, check:

1. Available disk space (Settings > System > Storage)
2. System boot time
3. Application launch speeds
4. Overall system responsiveness

After cleanup, verify:

1. Increased available storage
2. Improved boot times
3. Faster application performance
4. Reduced system errors

Troubleshooting Common Cleanup Issues

Problem: Cleanup Process Stops or Freezes

Solution:

• Restart your computer and try again
• Run cleanup in Safe Mode
• Check for disk errors using chkdsk

Problem: Files Reappear After Deletion

Solution:

• Some files regenerate automatically (normal behavior)
• Check if applications are running during cleanup
• Ensure no background processes are creating new temporary files

Problem: Cannot Delete Certain Files

Solution:

• Files may be in use by running programs
• Restart in Safe Mode and try again
• Use Disk Cleanup instead of manual deletion

Additional Performance Optimisation Tips

Beyond clearing temporary files, consider these additional optimisation strategies:

System Maintenance:

• Run Windows Update regularly
• Defragment hard drives (not SSDs)
• Update device drivers
• Uninstall unused programs
• Disable startup programs you don’t need

Storage Management:

• Move large files to external storage
• Use cloud storage for documents
• Enable file compression for infrequently used files
• Consider upgrading to a larger drive if consistently low on space

When to Consider Professional Help

Sometimes, system issues require professional intervention. Consider getting expert help if you experience:

• Persistent system slowdowns despite regular cleanup
• Recurring blue screen errors
• The hard drive is making unusual noises
• The system fails to boot properly
• Corrupted system files that won’t repair
• Need for complete system reinstallation

Conclusion: Maintain Peak Windows 11 Performance

Regular cleanup of temporary files and cache data is essential for maintaining optimal Windows 11 performance. By following the methods outlined in this guide—from basic Settings app cleanup to advanced command-line techniques—you can ensure your system runs smoothly and efficiently.

Key takeaways:

• Use Windows 11 Settings for routine cleanup
• Enable Storage Sense for automatic maintenance
• Perform thorough cleanups weekly or bi-weekly
• Never delete system-critical files
• Monitor system performance to gauge cleanup effectiveness

Remember, prevention is better than cure. Establishing a regular maintenance routine will keep your Windows 11 system running at peak performance, saving you time and frustration in the long run.

---

Need Professional Windows 11 Support?

Is your Windows 11 system still running slowly despite following these cleanup steps? Sometimes, persistent performance issues require professional diagnosis and repair.

Verge Tech Solutions specialises in comprehensive Windows 11 support for both home users and businesses:

Our Services Include:

✅ Windows 11 Repair & Troubleshooting – Fix system errors, boot issues, and performance problems
✅ System Tune-Up & Optimisation – Professional cleanup, driver updates, and performance enhancement
✅ Fresh Windows 11 Installation – Clean installs, system migrations, and data transfer
✅ Business IT Support – Multiple workstation management and ongoing maintenance
✅ Home User Support – Personalised service for individual computers and home networks

Why Choose Verge Tech Solutions?

• Certified Windows Technicians with years of experience
• Same-day service available for urgent issues
• Transparent pricing with no hidden fees
• Satisfaction guarantee on all services
• Remote support available for many issues

Don’t let computer problems slow down your productivity!

Contact Verge Tech Solutions today: 📞 Call us:  0203 488 0336
📧 Email: [email protected]

Get your Windows 11 system running like new again – Contact us for a free consultation!