Hello I am currently working on a client's computer. But every time I turn on the power button, on the computer's screen at the top left corner there is a little dash just blinking nonstop. I tried to go into bios but everything seems to be ok. I also powered down the computer multiple times and the blinking dash still remains. I asked my client if he had downloaded or done any upgrade to the machine but he said that it was working just perfectly fine the day before. Can you please help me in solving this problem. Thank you so much in advance.
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