Windows Brightness issue after the 1809 update

I created this task in PowerShell that adjusts the brightness at startup to Microsoft Windows 10 V1809.

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe "(Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,100)"

1. Run "C:\Windows\System32\taskschd.msc"
2. Right click on Task Scheduler and select create task
3. I used "ScreenBrightness" for the task name
4. Select "Run whether user is logged on or not"
5. Select "Run with highest privileges"
6. Click on "Triggers" tab
7. Click on "New"
8. Choose "Begin the task: "At Startup"
9. Click on "Okay"
10. Click on the "Actions" tab
11. Click on New
12. Past the command into the Program/Script Line
13. Click on Okay
14. Click on Yes
15. Enter your Windows user password
16. Click on okay.

When you restart your computer the screen brightness will change to 100% (1,100)

Ok, Windows 10 Home x64 here.

2 questions:

a.)  Do you create the task in PS x86 or x64 for 64-bit OS?

b.) If I want the brightness set to 75% what would be the appropriate number at the end of the command instead of 1,100??

Thank you.

a.) You don't need do bother with PS x86 or x64, simply follow the instruction, you only have to use the command in task creation no need to create any script file or execute with PowerShell x86 or x64 directly, it will use the PowerShell executable located in the directory specified by the command listed in the corresponding post

b.) (Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,75)

The second parameter of WmiSetBrightness specifies the percent value

a.) You don't need do bother with PS x86 or x64, simply follow the instruction, you only have to use the command in task creation no need to create any script file or execute with PowerShell x86 or x64 directly, it will use the PowerShell executable located in the directory specified by the command listed in the corresponding post

b.) (Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,75)

The second parameter of WmiSetBrightness specifies the percent value

Ok, got it.

So in Task Scheduler the command would be:

(Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,75)

OR:

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe "(Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,75)"

Also since the other user suggested to create a scheduled task with the option: Select "Run whether user is logged on or not" I'm pretty much sure that Windows will ask for a password, I do not use a password with this pc, local account, no password, so what password should I enter??

Thank you for your time.

Why you keep asking and not simply try it? I already explained it!

No, you need the full command:

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe "(Get-WmiObject -Namespace root/WMI -Class WmiMonitorBrightnessMethods).WmiSetBrightness(1,75)"

Why it should be v5.0 there is no such folder on Windows 10...where do you get that v5.0 folder from? no one ever said that!

Microsoft Rolls Out Windows 10 19H1 Preview Build 18262

We fixed an issue resulting in the brightness sometimes resetting to 50% after a reboot.

Please note that build 18262 is the skip ahead preview evaluation copy of win 10 that will be released next year.

The adjustment slider on the display setting and at the display setting under ease of access have been removed from the setting app and have been gone from a few versions back as well.