problem solved guys :
December 5, 2018—KB4469342 (OS Build 17763.168)
- Addresses an issue that causes the Brightness slider preference to be reset to 50% when the device restarts.
Windows Brightness issue after the 1809 update
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
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
2018-12-06T00:46:14+00:00 -
Anonymous
2018-12-06T11:44:31+00:00 I wanted to be the one that posted this!!!!!!!!!!!!!!!!!!
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Anonymous
2018-12-06T13:31:10+00:00 I was faster i think 😂
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Anonymous
2018-12-06T15:16:22+00:00 Yes, it works perfectly so far. :)
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Anonymous
2018-12-08T17:02:17+00:00 Hi everybody...my Dell XPS 13 9360 brightness adjust not working after leaving from Suspend mode, since version 1809 update ....last KB4469342 did not solve the issue.