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When I turned on my computer I received a pop-up message saying that ..'computer 224(+other numbers)......is attempting to access systemuiserver (not sure of spelling) on your....(not sure of the rest because the message went away after about 15 sec).
There was a button asking me to accept or not accept.
What am I supposed to do with this message? How am I supposed to know what that long computer number means?