My msi notebook shuts down completely, don't even want to start up, after leaving it for a few days, it will come on again working perfectly for about 5 days, then the same problem will occur. It works for a few days and then I have to leave it for a few days before it will switch on. I had sent the notebook to the manufacturer but they could not find any problems, since it was in a working state at that moment. Any idea what could be the problem?
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Stuff like that is hard to diagnose. You can wait for it to be dead so they can see it...
Also when it doesn't turn on, have you tried removing the battery and turn it on with the charger only?