Get rid of all personal info attached to files

I don't want to attach my PC-Name and personal info to every file I create.
Is there a way to permanently erase this on all files and stop my pc from doing it?

I want to understand your goal completely. Do you want to remove just your name, or do you want to eradicate the GUID data as well?

Right click the file: Properties>Details Tab:

Since when does Windows store personal info attached to files? because I don't see it.

what you are seeing, pillainp, is extra information attached to jpg files, probably added by the camera that the picture was taken by.

mp3 files also have extra info included in them, such as artist name, genre etc.

this is nothing to worry about, and neither your name nor your computer name is stored in the file.