Please check if the Faulty Module is MSVCR, then please check the following link : https://helpx.adobe.com/lightroom/kb/crash-in-lightroom-cc-2015-6-in-windows-with-exceptio n-code-0xc0.html
Let me know if it helps.
Thanks for your replay.
I don't know if your proposal works.
I installed LR 6 again and, for the moment, works fine.