Ahhh... my old eyes... I've got my better glasses on today... In your first post, you wrote "SH5", with an emphasis on the FIVE (5) - if that is correct, then follow the link in Peter THEBERBSTER's signature in the post above
http://www.subsim.com/radioroom/show...50&postcount=1
which will take you to his Silent Hunter 5 info, of which, you'll want to pay particular attention to the very first link on that page... If you do have SH4, emphasis on the FOUR (4), and that's just a typo above, then what version of the game do you have, and where did you get it? Also, that Windows 10 you have, that's 64-bit? or 32-bit?