Use the application to reinstall CCleaner

You can reinstall CCleaner UWP or the desktop app:

1. To download the desktop app, click Free Download on the CCleaner page.
2. After downloading, double-click the ccsetup615.exe file in the folder to open the setup window.
3. Finally, click Install in the setup wizard to reinstall CCleaner.

The second app you should try is UWP on the CCleaner Microsoft Store page. Proceed as follows:

1. Go to the CCleaner page on the Microsoft Store.
2. Click Get and then Open to access settings.
3. Click Install to start the installation of the app.