In powerpoint, the easiest thing to do is to put the cursor away from any of your design elements and draw a box around all the design elements.
Once that's done, right click on one of the corner indicator dots and select "grouping" and "group" That will lock all of the pieces in place, and you can just copy and paste it anywhere you want. BTW, I recommend that you opt to paste special as an enhanced metafile (I think that's the name) because you can then resize your logo to be whatever you want.
You can also opt to "save as picture" Note that if you save it as a jpg, any clear space (no background, etc) will go black, so that's not my first choice.
Good luck!