Disk Cleanup in Windows: Free Up Space and Improve Performance
What Is Disk Cleanup?
Disk Cleanup is a built-in utility available in every version of Windows that helps improve system performance, free up hard drive space, and remove unnecessary files. Over time, your computer collects temporary files, cached data, and other digital clutter that can slow down performance. Running Disk Cleanup allows you to clear these files safely.
You can access the tool by:
Opening File Explorer (
Windows logo + E)Right-clicking your local hard drive (C:)
Selecting Properties
Clicking Disk Cleanup in the lower-right section of the Properties window
From there, Windows will scan the drive and give you a list of file categories that can be deleted.
How Does Disk Cleanup Work?
The utility scans your hard drive for unnecessary files, then presents you with options to remove them. Once you confirm, Disk Cleanup deletes the selected files and frees up space.
Common File Categories Targeted by Disk Cleanup:
Temporary Internet Files – Cached browser data and history
Temporary Windows Files – System temp files no longer needed
Recycle Bin – Files that remain until the bin is emptied
Setup Log Files – Installation logs from previously installed software
Compression of Old Files – Files not accessed for long periods, compressed to save space
Why Run Disk Cleanup Regularly?
Improves Performance – Reduces lag by removing unnecessary background data
Frees Hard Drive Space – Makes room for important files and applications
Prevents Errors – Removes old or conflicting temporary files
Easy Maintenance – No additional software required, built into Windows
Running Disk Cleanup every few weeks helps keep your system fast, stable, and clutter-free. For more advanced solutions, you can also explore Backup & Disaster Recovery and Encryption & Data Security to protect your files.