Problem with resolution of Windows Boot Manager

Question

Me - A Windows user have installed Windows 11 23h2 Insider Preview AND I'm using a multi-boot PC (A Windows 11, a Windows 10 and a Windows 11 22h2 Setup) and I'm using Windows Boot Manager to choose the version.

Before install Windows 11 23h2 Insider Preview, the resolution of Windows Boot Manager was 1366 x 768.

After install Windows 11 23h2 Insider Preview, the resolution has been changed to unknown resolution.

Is there anyone know that how to take the default resolution back to Windows Boot Manager?

Answer 1

Hello there,

To set the default resolution for the Windows Boot Manager, you can follow these steps:

Boot into Windows: Start your computer and allow it to boot into the Windows operating system.

Open Command Prompt as Administrator: Right-click on the Start button and select "Command Prompt (Admin)" or "Windows PowerShell (Admin)" to open an elevated Command Prompt.

Run the BCDEdit command: In the Command Prompt window, type the following command and press Enter:

bcdedit /set {bootmgr} displaybootmenu yes

Set the default resolution: Type the following command and press Enter:

bcdedit /set {bootmgr} defaultdisplaymode <width> <height>

Replace <width> and <height> with the desired resolution values. For example, if you want a resolution of 1920x1080, the command will be:

bcdedit /set {bootmgr} defaultdisplaymode 1920 1080

Confirm the changes: Type the following command and press Enter to verify that the changes have been applied:

bcdedit /enum {bootmgr}

Restart your computer: Close the Command Prompt window and restart your computer. The Windows Boot Manager should now use the specified resolution as the default.

I used AI provided by ChatGPT to formulate part of this response. I have verified that the information is accurate before sharing it with you.

Hope this resolves your Query !!

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