Win7 can't adjust the brightness of the screen.
After entering the win7 system, we use the shortcut key to press win+r, and in the running window, directly enter “regedit”click OK; Br>
In the second step, go to the “Registry Editor” page and open it in order: “HKEY_LOCAL_MACHINESYSTEMControlSet001ControlClass{4d36e968-e325-11ce-bfc1-08002be10318}Item”;< Br>
The third step, then you can open the “0000” folder, directly find and double-click to open “KMD_EnableBrightnessInterface2”, and change the value data to “0” Click OK.
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