thank you for your swift answer.
… odd that the fusion drive is unfused: I had a problem with partitioning it: it could no longer have a partition.
What I did was follow instructions to unfuse it, for that was the only way to repair this.
I thought I did the instructions for refusing it, but apparently this action failed?
I do have good back-ups, there is no problem, other then that it takes a lot of time, which I do not have at the moment. This Mac is my work-horse
What do you mean with MS-ware: you mean microsoft? I do have parallels on the Mac, but I hardly use it.
other MS-software like word and excel I do need occasionally. In all my years of Mac I have never had any problem with that.
If you mean bij third party stuff the small tools that Are installed in the background: they are really very handy things that I use daily.
I do not see how my Mac would look like a windhose-pc?