High dynamic range ((HDR) video technology is the next big step forward to reproduce what the naked eye sees in the colors and contrast between the brightest whites and the darkest blacks. HDR video consists of recreating the realism of the camera image in postproduction, distribution and display. In this article, we will introduce the solution to the problem that you cannot re-enable Stream HDR video switch after Windows 10 upgrade.
Let’s look at a typical scenario where you may experience this problem.
In an earlier version of Windows 10, you disable the Stream HDR video switch then upgraded. In this scenario, you cannot re-enable the Stream HDR video switch to broadcast high dynamic range (HDR) videos.
Turn on the Stream HDR video switch
If you’re facing this issue that is preventing you from re-enabling the Stream HDR video switch after upgrading Windows 10, you can try one of the two recommended solutions below and see if that helps to fix the issue.
- Revert to the previous version of Windows 10
- Modify the register to activate the Stream HDR video switch
Let’s examine the procedure involved for each of the solutions listed.
1]Revert to the previous version of Windows 10
If you’ve upgraded to a newer version of Windows 10 in the past 10 days, you can resolve the issue by restoring the device to the version of Windows 10 from which you upgraded. , activate it Stream HDR video switch, then upgrade again to the new version of Windows 10.
To revert to your previous version of Windows 10, follow these steps:
Select the Start > Settings > Update and security > Recovery> To start under Revert to the previous version of Windows 10 title.
This process will keep your personal files, but it will remove the applications and drivers installed after the upgrade, as well as any changes you have made to the settings.
Once you’ve turned on the Stream HDR video switch in the previous version of Windows 10, you can check for updates to reinstall the new version of Windows 10.
If this solution does not work for you, go to the next solution.
2]Modify the register to activate the Stream HDR video switch
You can try this solution if you no longer have the option to restore Windows 10 to a previous version. You can activate Stream HDR video switch by modifying the registry.
Since this is a registry operation, it is recommended that you back up the registry or create a system restore point in case the procedure does not work. Once you have taken the necessary precautionary measures, you can do the following:
- hurry Windows key + R to call the Run dialog box.
- In the Run dialog box, type cmd then press CTRL + SHIFT + ENTER to open the command prompt in administrator mode.
- In the command prompt window, copy and paste the command below and press Enter.
reg add “HKCUSoftwareMicrosoftWindowsCurrentVersionVideoSettings” /v EnableHDRForPlayback /t REG_DWORD /d 1
- Exit the command prompt window and restart your Windows 10 device.
At startup, you can check for updates to reinstall the new version of Windows 10.
High Dynamic Range (HDR) video
Technically speaking, HDR video standards encompass more than just higher peak brightness and lower black levels. HDR also supports a wider color palette, new transfer functions, greater bit depth and static and / or dynamic metadata.
Here’s how HDR video technology works:
- Creates sharper contrasts and richer colors
- Increases dynamic range (aka, maximum brightness and black levels)
- Expands the color space (wide range of colors)
- Improves image fidelity (10-bit color depth and 1024 color tones)
- Updates to an optoelectronic transfer function
- Offers static and dynamic metadata
Related reading: Troubleshoot common HDR and WCG color issues in Windows 10.