: Multiple versions (e.g., "EVT INSTALLATION (1)", "(2)", etc.) occupying local space.
: Remove any recently installed third-party apps, especially those from unverified sources or those that lack a clear purpose.
: Use tools like the Files by Google Community to identify which app is generating the downloads and clear its data.
The appearance of these files is generally not a standard feature of OS updates or legitimate application installations. Potential sources include: