Interestingly I was playing about with the W7 snipping tool earlier to answer a query, now normally I just right click the snipped image and paste it into Irfanview to re-size it etc and then save it from there, but tonight I right clicked on the image and clicked on 'save as' and it wanted to save it in sys32. It was easy enough to change the target folder but for the unwary not so good. I presume it's because the snipping tool exe is located in that folder.
Good bit of detective work by the way,