SUPPORT

We can help.

For questions about scanning, cleaning or installing FeatherClean, email [email protected].

Before contacting support

• FeatherClean runs on Windows 10 (version 2004 or later) and Windows 11, on x64 and ARM64 PCs.
• Include the app version from the About window (the info button at the bottom of the left rail) and a short description of the issue.
• A screenshot of the cache list helps. Don't send the files themselves.

Common questions

What does it delete?

Only the caches you tick, and only after you confirm the preview. The list covers Windows temp and thumbnail caches, browsers, apps such as Discord, Spotify and VS Code, GPU shader caches and developer tools such as npm, pip and Gradle. Cookies, saved passwords, offline downloads, settings and your own files are never included.

Why are some caches unticked?

Caches that are slow or large to rebuild, such as package caches and downloaded models, are listed but left unticked and marked "Slow to rebuild". Tick them only if you are happy to download that data again.

Why does a cache say "Needs admin"?

Some Windows caches, such as Windows Update downloads and C:\Windows\Temp, can only be read and cleared by an administrator. Click the shield button in the left rail ("Restart as administrator") and accept the Windows prompt. If you decline, the app keeps working with the caches your account can reach.

Why were some files skipped?

Files that another app is using are skipped, never forced. The result screen names the apps that were running; close them and clean again to clear the rest.

Why didn't I get the space back?

If "Move to Recycle Bin" is on in Settings, the space comes back when you empty the Recycle Bin. Caches also refill as you use your apps; that's normal, and you can clean again at any time.

What does "Trim app memory" do?

It asks Windows to move memory that apps aren't using out of RAM. No app is closed and no file is changed; apps load that memory back when they use it again, so "Available" often drops again over time. As a standard user it trims only your own apps; after "Restart as administrator" it can trim all of them.

Why is "Clear standby list" greyed out?

The standby list is file data Windows keeps in spare memory so it doesn't have to read it from disk again, and only an administrator can empty it. Click the shield button in the left rail ("Restart as administrator") to enable it. Windows refills the standby list as you work; that's normal.

What does the Storage tab do?

When you press Measure folders, it adds up the sizes of the folders on your C: drive and shows them as a ring and a list, biggest first; click a folder to see what is inside. It only reads sizes: it doesn't open, move or delete anything. Measuring takes from a few seconds to a few minutes. "Other" is the space it couldn't attribute, such as other accounts, system folders Windows doesn't let your account read, and restore points.

Why do OneDrive, Dropbox or Docker rows have no tick box?

These rows are measured only. Files downloaded from a cloud drive are copies you chose to keep offline, so FeatherClean shows the space they take on this PC but never deletes them; right-click files or folders in Explorer and choose "Free up space" (or "Make online-only" in Dropbox) instead. For Docker, the copy button gives you docker system prune to run yourself.

Does it run in the background?

No. FeatherClean has no background service and no scheduled tasks. It scans only while it is open, and the Memory tab updates only while it is shown.

How do I uninstall it?

Open Settings → Apps → Installed apps, find FeatherClean and choose Uninstall. Windows removes the app and its settings file.