In this online tutorial, we cover the following topics: why do I need to choose system drive before using the app, tips for using the junk files cleaner, tips for using the large files finder, tips for using the duplicate files finder.

Why Cannot the App Find the System Drive by Itself?

You need to select the System Drive before starting using the app, not because the app cannot find the information by itself, but because you need to authorize the scanning and cleaning actions on the system drive. Otherwise, the app can do nothing.