@everiste32 and anyone else having ST-LINK driver install issues on Win 8.1:
Please follow the troubleshooting steps in the Getting Started document on page 4 and 5 to force the install.
If those steps did not resolve the issue and Windows cannot find a driver, then from Device Manager, right click the "STM32 STLink" device entry with the exclamation mark and manually point to the driver directory (where the batch file is located).
The Other Tesla David Blaza5 comments I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...