Evt-io-installation.mp3 |verified|

: While annoying, users have not reported any system corruption or "errors" directly caused by the files, suggesting they are relatively harmless beyond consuming storage space. Google Help identifying specific apps that might be causing these files to reappear? EVT IO INSTALLATION music files - Files by Google Community

What is EVT_IO_INSTALLATION.mp3 - Files by ... - Google Help evt-io-installation.mp3

Review which apps have "Storage" or "Install Unknown Apps" permissions. If the file appears after installing a specific app, that app is the likely source. : While annoying, users have not reported any