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After reinstalling the HP notebook, the screen brightness cannot be adjusted. It is always the brightest.

Hello, thank you for choosing HP products.

Based on your description, it is recommended that you refer to the following information:

1. If you cannot adjust the screen brightness through shortcut keys after reinstalling the system, it is probably because it is not installed. It is caused by the appropriate shortcut keys and graphics card driver. It is recommended that you try to install the shortcut keys and graphics card driver published on HP's official website.

For information on how to download the driver for the corresponding product from the HP official website, we recommend that you refer to the following official document:

/chat and consult an online engineer to help you further solve the problem. . More product information is available at www.hp.com.cn/800.