Comment 11 for bug 1456183

the precise location of the relocated output file will depend on which directory you were originally in, so if you were not in the root directory then you will need to move the search directory accordingly. If you want to find the output file, the simplest way to do it is type the file name in the top right hand corner of Windows Explorer where it says "Search Computer" or something like that. In any event what is significant is not the location of the file, but the fact that it got relocated.
   I would suggest trying to run Inkscape as an administrator using a right mouse button click. You could also open a DOS window as an administrator and then run Inkscape from DOS to see if that helps. This is just to confirm whether the problem is or is not a security issue.