If you encounter an issue with your Studio installation and or licensing issues, please follow the below procedure to re-install the most recent stable version of Studio.
Before you start, you might want to backup your settings.
Please follow this guide on how to do it:
Studio Community Edition - how to properly backup your settings
Uninstall Studio from Apps & Features menu:
Navigate to these folders and make sure to delete any leftover files
Get your latest Stable Studio Community Edition .exe installer from here:
After installation, you get two choices to license your Robot. The most foolproof method is to connect your Robot to Orchestrator. For that, see here.
Another method is to activate your license online.
This should fix your issues with the corrupted Studio installation, including any licensing issues.
Feel free to also refer to this topic in case your Studio auto-updates and stops working correctly:
(the fix for that is typically a simple computer restart)