Can't open Power BI desktop

Hello,

I can't open the Power BI Desktop latest version (July 2021), this error occurs when I'm lunching the software. I get this error:

We’re sorry. A problem occurred while rendering the report, and Power BI Desktop will close now. Please restart.

I'm not opening a particular pbix file only the desktop.

I've tried this:

https://community.powerbi.com/t5/Desktop/I-can-t-update-power-bi-desktop/td-p/91740

Rebooted, uninstalled several time, others versions but seems I can not clear regedit files because I tried to install April 2021 and despite Power BI is not installed it detects that a previous version more up to date was installed...

Any one know how can I clear all power BI regedit in my laptop?

Other ideas?

Thanks