Windows 10: Mysterious Registry

Greetengs everybody and happy holidays.


Could you please explain to me purpose of this Registry Values Windows 10, I couldn't find anything about it on the web:


Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\EnergyEstimation\Display


DisplayBacklightPowerFloor

DisplayBacklightPowerGradient

DisplayBacklightPowerQDenominator

DisplayBacklightPowerQNumerator

DisplayPanelPowerAreaFactor

DisplayPanelPowerDpiFactor

DisplayPanelPowerFloor

DisplayPanelPowerVsyncDelta


I can't figure out what it does, could be display power control or backlight, please help.

:)

 

Registry editing

Hello,

This issue may have occurred after one of the following situations:

• You upgrade the Windows operating system.
• You install or uninstall CD or DVD recording programs.
• You uninstall Microsoft Digital Image.

Given that, we suggest performing the methods in this article:
Your CD or DVD drive is not recognized by Windows or other programs.
The resolutions that are listed in that article may help solve some instances but not all instances of this problem.

Important:This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow
these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, refer to the following Microsoft Knowledge Base
article.

Feel free to update us with the results.

 

registry fix

Hi,

Thank you for posting your query on Microsoft Community.

As per the description, I understand that you are facing some issues using Windows 10.

I would like to know some information.

• 
  What registry fix are you trying to run?
  
• 
  What is the exact issue that you are facing?
  
• 
  Have you taken a backup of all your data?
  

I would suggest you to take a backup of all your data before doing any changes in the registry keys. If you do any incorrect changes to the registry you won’t be able to boot the computer.

Disclaimer: This section, method, or task contains steps that tells you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps
carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in
the Microsoft Knowledge Base:

322756 (http://support.microsoft.com/kb/322756/ )

How to back up and restore the registry in Windows.



Please let us know the information in brief. We will be glad to assist you further.

 

"Open With" menu - registry entries mysterious

I have no interest in editing what that page is talking about (the top-level context menu items). The term "Open With" is not even mentioned, and registry entries it talks about are in a completely different area of the registry.

I already know where in the registry the Open With lists are for all the file extensions. My problem is that they don't match what the menu is showing, and I want to know why.