@Leemh: what kind of (unwanted) noise would you say your guitar suffers from?
I see you are not native English speaking, so please look through the link I gave you and see if you are more confident in any of the different (warble, buzz, artifacts, clang, plink etc). I'm not native English myself either, so I know how difficult it can be on a forum :)
As all the other guys say, different issues requires different treatment. Though, it is most common a setup issue.
Or, even better would be a soundsample so we could hear it ourselves.