Thank you for the info and reply.
I was wondering about another option since for now I don't have the time to look at every file, yet at the same time I want my space back, as well as not deleting files (because deleting can harm)
Can I move the 15GB bak file to another partition? Or does the program only look at C when looking for this backup bak?
(I could move it 2 times ofcourse ).
(If the program only sees C drive for this bak, maybe something for the next update, but my bet would be I can search the whole pc already )
Now I use file shredder to kill files. It 3x overwrites. So this 15G loses 3 points/bit. (got a WD black)