If you only want to delete the installer, you can select it from the Trash, then right-click the icon to reveal the Delete Immediately… option for just that file. Alternatively, your Mac can delete the macOS installer on its own if it determines that your hard drive doesn’t have enough free space.

Can I delete install macOS Catalina?

The installer should be in your Applications folder and is just over 8 GB. It needs about 20 GB to expand during installation. If you only downloaded it, you can drag the installer into the trash and delete it. Yes, May be, it is interrupted by connection.

Can I delete install Mac Mojave?

All you have to do is open your Applications folder and delete “Install macOS Mojave”. Then empty your trash and download it again from the Mac App Store. … Put it in the trash by dragging it to the trash, pressing Command-Delete, or by clicking the “File” menu or the Gear icon > “Move to Trash”