Everything stays on your PC.

FeatherClean (listed in the Microsoft Store as "FeatherClean – Cache Cleaner & RAM Trim") is published by Digital Zoom Studios. It runs entirely on your Windows PC. It does not create an account, show advertising, use advertising identifiers, collect analytics or send telemetry.

What the app reads

To show how much space each cache uses, the app looks at the folders in its built-in list of known caches and reads the names, sizes and dates of the files inside them. Before a delete it also checks the names of the programs that are running, so it can warn you about apps that may hold cache files open. This information is shown on screen and kept in memory only while the app is open. It is not saved and it is not sent anywhere.

On the Memory tab the app also reads the names of the programs running on your PC and how much memory each uses, plus your PC's total, available and cached memory. These figures are refreshed every two seconds while the tab is open, shown on screen, and kept in memory only. They are not saved and not sent anywhere.

Some rows are measured only and never cleaned: the cloud folders that sync through Windows (such as OneDrive and Dropbox), Docker's disk images and saved Playwright browser sessions. For these the app asks Windows for the list of cloud folders it syncs and reads how much disk space the files in them take. It does not open the files, so files that are online-only are not downloaded. To label Playwright's browser downloads, the app also reads two small files Playwright keeps for this: the list of projects that installed browsers, and each of those projects' list of the browser versions it needs. Nothing else in those projects is read.

On the Storage tab, when you press Measure folders, the app adds up the sizes of the folders on your system drive (C:) to show what is using the space. It reads folder names and the sizes Windows reports for the files in them; it does not open, change or move any file. Folders Windows does not let your account read are skipped. The result is shown on screen and kept in memory until you close the app. It is not saved and not sent anywhere.

What the app deletes

The app deletes files only in the caches you select, and only after you confirm a preview. Depending on your setting, files are deleted permanently or moved to the Recycle Bin. Folders known to hold cookies, saved logins, offline downloads, settings or your own documents are never part of the list. For a few caches the app runs that tool's own clean-up command on your PC instead (for example uv cache clean, or Windows' Delivery Optimization clean-up); these commands also run locally.

Some Windows caches can only be cleared by an administrator. The app always starts without administrator rights and asks Windows for them only when you choose "Restart as administrator".

On the Startup tab the app reads the list of programs that start when you sign in (the registry's Run keys, your Startup folders and the startup tasks of Store apps), including each item's name, command line, publisher and whether it is switched on. This is shown on screen and kept in memory only. It is not saved and not sent anywhere. When you turn an item off or on, the app changes only the on/off setting Windows keeps for that item, the same one Task Manager uses; it never deletes or edits the item itself.

The Memory tab's "Trim app memory" and "Clear standby list" buttons ask Windows to release memory that is not in use. They do not delete or change any file and do not close any program; Windows loads the memory back when it is needed.

What the app stores

The app saves two preferences, the delete mode and how old temporary files must be before they are cleared, in a small settings file in the app's own storage on your PC. Windows removes this file when you uninstall the app.

Network use

The app makes no network connections. The Privacy policy and Support links in the About window open these pages in your web browser, which then loads them like any other web page. Microsoft Store may process installation, updates and Store acquisition under Microsoft's own privacy terms.

Support

If you email us, your message and anything you choose to include are used only to answer your request.

Changes

If this policy changes, the new version will be posted on this page with a new effective date.

Contact

Privacy questions: [email protected].

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