Very insignificant
KingSparta,
If you put a 40 ft boat in a lake, it will use almost no space compared to the total area of the lake's surface, and the effect on the water level isn't even measurable. If the lake is small, the boat will look ridicilous, but even then the area and deplacement of the boat are very small compared to the dimensions of the lake. The effects (apart from the aestethical ones) are insignificant.
If you put the same boat in a 50 ft swimmingpool, its effects are no longer insignificant.
What I am doing now with the help of John's advice is lifting the boat out of the swimmingpool and moving it to the lake.
My computer gave me messages that about 80% of the available "profile area" (of around 30MB) were used, and when it enumerated the files I saw the MC config files. The automatic backup of this profile area is somewhat of a rescue kit if the PC has to be re-installed, securing the contents of my desktop and a number of settings. This is feature I cannot affect, the only thing I can do is not to put files in that area that don't have to be there. So I'm moving the files to another area (on the same disk, but with no back-up). There the amount of data is just like two more tracks in the music collection, in addition to the 4000 or so that are already there. Indeed very insignificant
Thank you for the link. It could be useful for other reasons. And I appreaciate your helpfulness!