How to Clear Windows 11 Cache to Improve Performance
Over time, cached files can accumulate in Windows 11 and negatively affect system performance. Clearing cache safely can help free up storage, reduce slowdowns, and improve overall responsiveness without deleting important files.
This guide explains the safest and most effective ways to clear cache in Windows 11 using built-in tools.
What Is Cache and Why It Slows Down Windows 11
Cache files are temporary data stored by Windows and applications to speed up tasks. While cache is useful, excessive cached data can cause issues such as:
- Slow system performance
- High disk usage
- Lag and freezing
- Reduced available storage
Regularly clearing cache helps Windows 11 run more efficiently.
Method 1: Clear Temporary Files Using Settings
Windows 11 includes a built-in option to remove temporary files safely.
- Open Settings
- Go to System → Storage
- Click Temporary files
- Select unnecessary items
- Click Remove files
Avoid deleting Downloads unless you are sure the files are no longer needed.
Method 2: Clear Disk Cache Using Disk Cleanup
Disk Cleanup is a classic Windows tool that still works well in Windows 11.
- Press Windows + S and search for Disk Cleanup
- Select your system drive (usually C:)
- Check temporary and system files
- Click OK to clean up
This method is safe and recommended for routine maintenance.
Method 3: Clear Browser Cache
Web browsers can store large amounts of cached data. Clearing browser cache may improve both browser and system performance.
Most browsers allow you to clear cache by opening Settings and selecting Clear browsing data.
Method 4: Flush DNS Cache
DNS cache stores address lookups for websites. Flushing it can help resolve connection issues and minor delays.
- Press Windows + S and search for Command Prompt
- Run as administrator
- Type ipconfig /flushdns and press Enter
This process does not affect your files or network settings.
How Cache Cleanup Improves Windows 11 Performance
Clearing cache helps Windows 11 by:
- Freeing up disk space
- Reducing unnecessary background processes
- Improving system responsiveness
- Lowering disk usage spikes
If your PC still feels slow, you may want to apply additional fixes:
How to Fix Windows 11 Slow Performance
How Often Should You Clear Cache?
For most users, clearing cache once every one to two months is sufficient. Frequent cache removal is unnecessary and may slightly slow down applications temporarily.
Use cache cleanup as part of a balanced Windows 11 maintenance routine.
Final Thoughts
Clearing cache in Windows 11 is a simple and safe way to improve system performance. By using built-in tools like Storage Settings and Disk Cleanup, you can keep your PC running smoothly without risking important data.
For best results, combine cache cleanup with other Windows 11 optimization techniques.