Once I understood that you meant to run it BEFORE the installation of 10.1.219, yes I did. After the installation it's impossible as the computer is almost totally frozen and has no internet access. And yes it fixed the problem. Thank you. Just one suggestion: include a cleanup of the registry from all previous version's garbage, by default, in any installation of a new version. it would save a lot of trouble and waste of time to customers.
Thanks again for the fix !