Thanks everybody for your efforts, but as I wrote in the original message, that driver was not installed here in this PC, but in another one, and the driver installer was on my D:\Install folder just for archive/reference. I do really appreciate the replies but didn’t point to the question of the “not a virus” file deleted by Kaspersky and no more recoverable. And more I’m still arguing where that backup copy should be :-) I just filed a ticket ( INC000012216512), but if Kaspersky deletes things erratically without asking and even after an “create exception” I cannot rely on it. Anyway I will maint it on my PC (disabled of course) for some day hoping for a solution via the ticket or in case of details asked.