I have this problem too. Lenovo Thinkpad Carbon X1 3rd generation. Your solution does work. Those settings are GONE with 1809. This makes my laptop unbearable to use in any bright room. Please fix this immediately.
Windows Brightness issue after the 1809 update
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Anonymous
hello , Yesterday I installed the 1809 update , and today i noticed that each time i restart my laptop the brightness level is being reset automatically to 0% or 25-50 i'm not really sure , and after windows will boot up , i will need to manually adjust the screen brightness again to 100% . I searched the web and i found this https://www.windowscentral.com/windows-10-october-2018-update-common-problems-and-fixes#fix\_brightness\_windows10\_1809 , and it might be an update issue i think , by the way , my power plan is set to maximum performance and my laptop is always plugged in , and solutions or ?
Windows for home | Windows 10 | Windows update
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Anonymous
2018-12-21T17:27:55+00:00 -
Anonymous
2018-12-21T05:35:03+00:00 Same problem with my Surface Book 2 (both 13 and 15 models), hope MS could figure it out soon
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Anonymous
2018-12-11T21:49:33+00:00 Touchvpn
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Anonymous
2018-12-11T21:47:26+00:00 ...and... Yesterday the laptop let me know another update was being loaded -- with exactly the same KB number as the fix a day before.
This time, restarts do continue with correct brightness, at least so far.
Crossed fingers, but in any case, at least there's a finger workaround if the round-about turns out still not right...
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Anonymous
2018-12-11T21:46:03+00:00 hello , Yesterday I installed the 1809 update , and today i noticed that each time i restart my laptop the brightness level is being reset automatically to 0% or 25-50 i'm not really sure , and after windows will boot up , i will need to manually adjust the screen brightness again to 100% . I searched the web and i found this https://www.windowscentral.com/windows-10-october-2018-update-common-problems-and-fixes#fix\_brightness\_windows10\_1809 , and it might be an update issue i think , by the way , my power plan is set to maximum performance and my laptop is always plugged in , and solutions or ?