highlight the message; right click within the highlighted part; choose "copy". Now open wordpad or word, right click again and choose "paste". Now you've got a copy of the message and you can use the same Copy/paste method to get it from word or wordpad into your thread here.
have you actually GOT a photo of the message, or have you taken a screan shot of it?; if neither, suggest, when the pc closes you write down the message displayed as I suspect you are maybe unbale TO copy and paste it into a word document? also, just MAYBE, IF you ARE having problems WITH getting an image or whatever on forum, you COULD contact the Forum editor to ask for HIS assistance to put it on forum for you?