Surface pro 3 Brightness control missing

Again the same old issue. After the last windows update (version 1903 build  18362. 239) i cant adjust the screen brightness ( is set in 100% and it is draining the battery).

This is the second time an Windows actualization creates this issue.

Does anyone have a clue how to fix it this time?

Thank you 

Paulo Souza

Again the same old issue. After the last windows update (version 1903 build  18362. 239) i cant adjust the screen brightness ( is set in 100% and it is draining the battery).

This is the second time an Windows actualization creates this issue.

Does anyone have a clue how to fix it this time?

Thank you 

Paulo Souza

I should add how I thought I shut off Automatic updates.   I turned off the options in the interfaces for Updates.   I went into services, and stopped the service(s).  Then I moved the update services (as an Administrator)  from either Auto or Manual to  "Disabled".   

I suspect most normal person would conclude that changing the configuration and disabling the Auto-Update Services would prevent updates.  

I can only conclude that one of the following is true:

1. My Surface applied some hotfix or roll-up (somehow, despite disabled auto-updates); OrT
2. There is one more auto-update setting I missed; or,
3. The bug is native to the older version and asserts itself at some point with 48 hours of a clean install to a particular old Win10 Version. 

I've already invested way too much time in trying to solve this issue, so I'm raising the white flag... and surrendering.  My surface will make a great docked Home Theater for one of our TV's (as an external monitor).

I carefully rolled back and turned off auto-updates.  It solved the problem for 48hrs, but the update still slipped through at some-point.  My story:

In December (before a 4 week trip abroad),  I performed a full clean install to revert my Surface Pro 3 to a version before the bug appeared.    I a technical person with easy access to all my installers,  so it only took me about 2 hours to create the USB image, and 5 hours to install and restore all my software.

The functionality with the power button and slider was restored upon the clean install.    And, I thought that I shut off automatic updates to avoid having windows re-apply the Roll-up Patch which would break the features.

However, the patch (somehow) got pushed within 48 hours  (about a day before my trip).    And, all the problems re-Surfaced  (Pun intended). 

I was a help-desk and PC technician for years, so I'm usually pretty good at this stuff.   I usually read at least 3-4 articles about how to perform something (like stopping automatic updates), to ensure that I see the same instructions twice and ensure I have coverage of all the approaches. 

Egotism aside,  windows is designed to protect and update itself.   I consider myself a desktop  Vetran/Master on the scale of  (Beginner, Novice, Intermediate, Advanced, Veteran, Master).    I can make mistakes, but I couldn't even find where I'd error going back in retrospective.  

Based on this,  I have the opinion that most average folks will not be able to successfully revert and permanently suppress updates to work-around the issues.    I'm also not willing to invest another 4-6 hours to try another reset, because I can't find my error (and the same problem will reoccur).    I'm tempted to just upgrade,  but I also lack the information to know which models this issue applies to  (Surface Pro 3, 4, 5,   book, etc).

As a result, I simply got a keyboard, added office, and installed a Bluetooth mouse (using mobility features) on my (renewed) iPad Pro 11".  I prefer Windows, but the iPad has an 11hr battery life and can be recharged 4 times off a big Anker power-bank with no access to an AC Outlet.   It's not perfect, but I can perform 80%+ of the things I need to do.   The only think I really miss from Win10 is tabbed browsing where I can also open tabs to windows, and floating windows. 

I still really like my Surface Pro 3, and it's perfectly fine outside these issues.   However, it's not aging well compared to devices powered by a USB-C that can be supplemented with an external charger.   I think I'm just going to permanently dock it, and connect it to a TV as a dedicated Home Theater PC (HTPC) unit...   and treat it like a Win10 ROKU Ultra. 

If I dock it,  I'll periodically check every 3-6 months to see if Microsoft ever solves their bugs.   If they do, I may bring it back into rotation as a traveling device.  :-(

My Surfacepro3 is

When I applied the windows patch, I could not work at full power.

Works very slowly.

I wanted to go back before applying the patch.

However, Surfacepro3 crashed during the restoration process.

Installing the reinstalled software is extremely difficult.

I may not use surfacepro3 anymore.

My Surfacepro3 has the same performance as an older netbook.