Picture compression works not correctly/always

[MS_PPT_Joe]

Hi all,



The problem is:
I want to reduce the file size of a very big presentation with 127 MB (to 150 ppi).
(Please don't answer with an instruction of how to compress pictures in ppt )

PC 1 and PC 2, both have Win 7 Prof. 64bit + PPT 2010, reach an output after compression of 123 MB.
PC 3 (Win 7 Prof. 64bit + PPT 2013) achieves the same outcome.
Only PC 4 (Win. Prof. 64bit + PPT 2013) achieves a result of 13 MB!!!
All systems have the same settings/configurations in PPT.

The presentations of the company can have all formats of pictures (JPG, PNG, BMP; GIB, TIFF,...).

If I try it with another presentation, which is not made by the marketing department of the company, for example some templates of MS PowerPoint all system works fine and have the same size of output.

I hope you can assist me in finding a solution for this strange problem

regards,
Joe