Crash all’avvio durante "Looking for control surface"

Hy, On my Win10 system I installed version 17.0b6 (free), until yesterday I had no problem. Now All of a sudden I can't use the program anymore. At the start-up it stops at "Looking for control surface" and then freezes closing the window. I tried to uninstall the program and then install it again to no avail. Could I have your help?

[Peter Chamberlain]

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