Thank you for submitting feedback. In order to efficiently investigate and reproduce this issue, we are requesting additional information outlined below.
It may help if you provide us with a setup log file.
You can get the log files with the following steps:
1) Download collect.exe from the link below. <<<http://aka.ms/vscollect>>>
2) You may choose to save the tool for later use, or to run directly.
3) The utility creates a compressed cabinet of all the VS and .NET logs to %TEMP%\vslogs.zip.
4) Upload your vslogs.zip by choosing insert file tag on add comment field then submit.
You can get more details about how to get the log files here:
<http://blogs.msdn.com/heaths/archive/2008/05/09/visual-studio-and-net-log-collection-utility.aspx>

We look forward to hearing from you with this information.

Hi,

here are the logs from the log collector: vslogs.zip

However I also have additional information: I clicked on 'abort' / 'abbrechen', but the installation did not rollback or abort.
As I had some work todo in VS2015 and it refused to start while the VS 2017 RC installation was running, I rebooted.

After reboot, the installation came up again, this time trying to install an Android Emulator. Also this got stuck and could not be aborted. Again, after another reboot, the installation of the CorodvaTools6.3.1 got stuck at 51%.

After a few hours I could not see any other means than to kill the installation process via Taskmanager to be able to open VS 2015 and do my work.

Thanks for your investigation.

Thank you for providing the information. We are forwarding the issue to the engineering team for investigating .

Mine is stuck at 83%

vslogs.zip

logs attached