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1 may be poisoned, it is best to use the system disc into winpe to try, to see if you can use a mouse and a u disk in the pe, if it is available, it is the system poisoned.
2. The USB port of the notebook is broken, and the USB port is all tried.
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Find after-sales Spend money to buy a notebook, the purpose is to be timely after sales.
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You can try to comprehensively detect and kill viruses.
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Unplug the USB and replug it, and if it doesn't work, you have to replace it with a new one.
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That's the problem with the mouse, and it's advisable to go back and get a new one.
You can use this with confidence, it has no effect on the notebook, and I sometimes play like this, and the big screen is more exciting.
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The laptop will absorb a lot of dust and block the heat dissipation vents, affecting the heat dissipation.
The notebook is packed in the bag, and the toilet generally has a place to hang the bag, close the door, and hang the bag.