...KJ...

-open windows explorer [windows button on your keyboard and
E at the same time is a short cut]
-on the left side of the explorer click on the plus next to
the windows Dir.
-open the cookies folder that will be displayed on both sides
of the window. clicking on it once will display
the contents on the right side of the window.
-delete all files out of the folder. [cntrl and A selects
all then delete key will of course delete the files
for you]