Microsoft Store · Windows

HDD Space Optimizer

Find large files, visualize disk usage and review cleanup candidates. Local scans, clear storage views and manually confirmed recycling.

Check Microsoft Store for the current price, availability, supported languages and system requirements. Mac availability is listed separately on our Mac apps page.

About this app

See what is taking up space before you decide what to remove. HDD Space Optimizer brings folder and drive usage into a clear Windows desktop view.

Explore a size-sorted directory tree, a visual treemap, file-type totals and your largest files. Open locations in Explorer to inspect them, then review cleanup candidates and select only the files you want to send to the Recycle Bin.

Scans run locally on your device. No account, advertising or cloud upload is required.

Important: cleanup suggestions are starting points for manual review, not a guarantee that a file is unnecessary. Possible duplicates are identified by name and size, not by comparing file contents. Review selections and maintain backups. Sending files to the Recycle Bin does not immediately free disk space; availability and recovery depend on Windows and the storage location. The app does not promise a performance boost or guaranteed recovery.