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Dave I get no warning that it needs to update, but sometimes it runs very slow and I have noticed that there is a logo at bottom right of my screen which is sort of whizzing around, when I click on it, it says it is doing an update. Then when I eventually close down, there is a yellow exclamation mark in the 'shut down' box and it says it is going to update, and will close down automatically. It seems to be updating almost every time I close down, which it didn't used to do.