How hard is it to just do what we tell you to?
Ok, here's the next level of detail for you (or your friend):
Do the following (or have your friend do it):
1. Open Zero-K lobby.
2. Click the blue button that says "Settings" in the top row.
3. Click on the button "Open game data folder".
4. An explorer window opens in which you can see files.
5. Find the file "infolog.txt" in that explorer window.
6. Double click on that file to open it.
At this point, you see a log of events that can be used to find out why ZK crashes. Now you have to transfer that information to us, since you probably won't be able to figure out what went wrong. Since this file is really long, you should not simply post it here but upload it somewhere else so it doesn't spam the thread.
pastebin.com is a website where you can upload texts. It has nothing to do with Zero-K, but it's convenient to use, which is why we recommend it here. This is what you have to do:
7. You still have infolog.txt opened? Good.
8. Hit Ctrl+A.
9. Hit Ctrl+C.
10. Open
http://pastebin.com/ in your favorite browser.
11. Click in the field below "New paste".
12. Hit Ctrl+V.
13. Click the "Submit" button at the bottom of the page.
14. Copy the link that appears in the url bar of your browser (click in the bar, hit Ctrl+A, hit Ctrl+C).
15. Post it here (Ctrl+V).
The next level will be screenshots. Beware.
I'm afraid to use sarcasm (although i'm tempted) because i fear it leads to confusion on the receiving end.