I've had Skyrim for a couple of week now with no problems and all of a sudden today when I try to go on it, it doesn't work.
It'll work fine until it reaches the main menu (after the 'Bethesda Softworks' logo) then it justs crashes.

Any help would be much appreciated thanks.

Unless you only have a game console, in which case, you are in the wrong forum, you've offered no information worthy of the definition of the word, sorry, you'll have to do tons better. Read just a few of the hundreds of duplicate questions just like yours to find out what to include.

(Example, happens to be for TES: IV.) http://www.gamesas.com/topic/1396766-why-wont-my-laptop-run-oblivion/page__pid__21232537#entry21232537

I do have it for console but this problem is for my PC version and how can I give more information when I don't know what's wrong, it worked fine yesterday but not today, nothing has changed since then.

P.S. What kind of information would help resolve my issue.