win7 system adjusts the brightness function disappears how to restore
The specific method is as follows:
1, download the driver wizard online, run the installation, open the driver Elf. Press one button to detect;
2. In the test result, click the hardware driver and jump to the driver download and installation page. Find the power management driver in the driver you need to install, click download;
3. After the driver download is complete, click Install;
4. Click Next until the driver installation is complete;
5, click on the power in the lower right corner of the desktop, you will see a button to adjust the brightness of the screen, click, you can adjust the brightness of the page at the bottom of the page.
The above is the recovery method for the brightness function of the win7 system. After the simple setting, we can adjust the screen brightness.
1. First, we record the file information that causes the screen to fail to boot, such as: C:\\Window
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