Broken installation needs cleanup

Hello!
I can’t believe it’ still so difficult to choose installation path in the download assistant after so many years, so many versions.
I now seem to have a broken installation after aborting “install all” process for Cubase 13 pro. I’ve tried uninstalling all parts one by one and then running each installation manually but the installation program seems to crash.
Is there any sort of “Clean up” utility available to remove files from failed installations?
I’ve been using steinberg download assistant version 1.35.0
Activation manager 1.4.41.1101.
Steinberg install assistant version: 1.2.2.68

Best Regards
Björn