@rhohne ATM it's installed at C:\, where recommended by RS. Apart from the partition on the disk for the recovery drive I have no other drive, unless you mean a portable drive.
@ everyone
I am encountering other problems, about which I shall open another
thread just in case one of you has ever met something similar.
The problem may or not related to the problem here.
In the meantime the back-burner is lighted.
