X220t, after two or three times of shutdown, the mouse and USB can't be used. Press f8 to disable driver signature enforcement, which is normal and difficult! - Quotes Website

X220t, after two or three times of shutdown, the mouse and USB can't be used. Press f8 to disable driver signature enforcement, which is normal and difficult!

First of all, you can use the driver CD that you brought with you when you bought the machine to install the complete driver.

Second, download the official driver in official website.

Third, use third-party software to update the driver.

1. Open Tencent Computer Manager and click "Toolbox".

2. Find "Hardware Detection" in the toolbox.

3. Click "Driver Installation" in hardware detection.

4. You can see the "Installation Status". If it is not installed, you can click Install directly.

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