DiskDetox · Free up space on your Windows PC (100% private)

Drive health

Where your space went

Top folders in your user profile

Biggest app caches (AppData\Local)

What's on each drive

Top-level folders on every fixed drive, biggest first. Now you can see what's filling a second drive (D:, E:…), not just C:.

Biggest individual files

The largest single files in your profile (≥100 MB, skips app data). These are your files, so look before you delete. Open the folder, confirm it's junk, then remove it.

File	Size	Location

Installed games

Reclaimable now

Location	Size	Risk	Clear it

Suggested fixes (ranked)

Each command is copy-and-run in PowerShell. Safe = junk you won't miss. Review = check before running. Advanced = needs Admin or changes system behavior.

Largest installed programs

Sizes are Windows' own estimates and can be rough. Uninstall only things you recognize and don't need. Keep anything that keeps your computer running (drivers, runtimes, Windows components).

Program	Size (MB)

System files

1 · Run the scan

Copy the PowerShell command below.

Open PowerShell on Windows (Start → type "PowerShell" → Enter), paste, and press Enter. It's read-only. It deletes nothing and reads only folder and program names and sizes, never file contents.

It saves disk-health.json to your Desktop and copies it to your clipboard.

Come back here and either paste the result or load the file just below.

Redact paths & machine name (extra privacy)

The scan sizes folders across all your drives and finds your largest files, so on a full or large drive it can take a few minutes. That's normal. Cloud-only OneDrive files are skipped automatically, so they don't slow it down or get counted.

2 · Load your results

Good to know

Why does a near-full drive slow my computer down?

Windows constantly needs free space for the page file (virtual memory), temporary files, and updates. When a drive climbs above roughly 85–90% full (an SSD especially), the system has less room to work and write speed drops. Freeing space back below ~85% usually brings the responsiveness back. The goal is breathing room: enough free space that Windows isn't always scraping for it.

What's actually safe to delete?

Temporary files, the Recycle Bin, Windows Update leftovers, and most app caches are safe to clear. Apps rebuild them as needed. Your Downloads folder is marked "review" because those are your files. Never delete things in Windows, Program Files, or driver folders unless you know exactly what they are. This tool flags the risk level so you don't have to guess.

What are "temp" and "cache" folders?

Temp folders hold short-lived working files that programs forget to clean up. Caches are saved copies of data (web pages, thumbnails, package downloads) kept around to make things faster next time. Both are safe to clear. You'll see a one-time slowdown while they rebuild, and that's it.

Is hosting this page publicly really safe?

Yes. The page is a static shell with no data in it. Your scan output is pasted in your browser and processed right there. It's never uploaded, because the page makes no network calls at all. The only thing that could ever be sensitive is folder names, and those stay on your machine. Use the "Redact" toggle if you want folder paths and your machine name stripped out of the scan too.

How do I undo a cleanup?

Cache and temp deletions can't be "undone," but they're meant to be thrown away. Windows and your apps rebuild them automatically. Items sent to the Recycle Bin can be restored until you empty it. Uninstalled programs can be reinstalled. Nothing this tool suggests touches your personal documents.