A fix for this issue is now available through Windows Update. Please review the Surface Book 3 Update History page.
Eddy.
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As im working on my new $3500 Surface Book 3 i can't help but be extremely annoyed because the screen/mouse just randomly freeze, usually for about 5-10 seconds then its back to normal. Sometimes it will freeze and i have to hit the power button and that seems to unfreeze it. Very annoying, not to mention the screen dimming and getting bright on its own even though the option for it to do that is turned off.
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A fix for this issue is now available through Windows Update. Please review the Surface Book 3 Update History page.
Eddy.
Hi Tommy-Bayshore,
Thank you for reaching out to Microsoft Community.
For the brightness, does it change its brightness when you switch from opening between bright an dark content on the screen? Or even if when you have the same content on the scree, it changes brightness on its own?
Please run these steps on your Surface Book 3 to troubleshoot then observe if still the issues persist:
1: Run Surface Diagnostic Toolkit and check Windows Update
2: Update drivers and firmware
Check what is the current OS Build of your Windows version by going to Settings > System > About.
Go to Download driver and firmware for Surface, choose Surface Book 3 then click Download on the next page.
Choose the .msi file that matches your current OS Build and click Next.
After downloading, run and install the .msi then Restart.
3: Run System File Checker Tool in Windows 10
If this answer your question, we highly encourage you to inform our Community by clicking on Yes or marking my post as an answer. This will help other members who may have the same issue as you. Otherwise, don't hesitate to update us so we can further assist you.
Kind Regards,
Marrion Y.