Windows 10: Black screen instead of bootloader, then start

Hello,

I had Windows 10 installed on one partition, and then installed Windows 10 on another partition. The first time I restarted the laptop after the installation finished, I got the "Choose an operating system" (you know, the blue menu with white font) menu (with the two installations) and the 30 seconds time before the auto choose. But then, after the new Windows 10 started, and after the drivers were automatically installed and everything else set up, I restarted the laptop again, and this time there was no "Choose an operating system"" menu - instead there was black screen (with display backlight turned on of course) for some time (probably the 30 seconds) and then the laptop booted into the newly installed Windows 10 (it is set as default now). I tried restarting the laptop several times to confirm that this is the issue. I tried pressing the F12 button at boot, which brings another Windows menu (also blue) from which you can choose the option for the "Choose an operating system" menu. I chose that option, and the "Choose an operating system" menu came up and I could choose between the two installations (the older installation is set as second - non-default choice).

So, I'm very happy that something worse didn't happen, but how can I fix the black screen during the automatic (at laptop turn on) "Choose an operating system" menu. Without breaking something else meanwhile.

Version number: 20H2
Laptop model: ASUS X509JA

Thanks in advance.

:)

 

Endless black screen without anything but it is on

Hi Basim,

There are several reasons why the screen turns black only. It can be an issue with the software or hardware. Please answer the following questions:

• Are there any major changes made on your computer before the issue started?
• Have you performed any troubleshooting steps to fix the issue?

For now, we suggest that you follow the troubleshooting steps from this
link.

We are looking forward to your reply.

 

Windows 10 Black screen, Start screen, Critical Low Battery

Hi,

Thank you for posting your query on Microsoft Community.

I would suggest you try the power troubleshooter if you are able to boot into the system.

Follow the steps below.

• Press Windows key + W and type Troubleshooting.
• Select Troubleshooting and click on System and Security.
• Click on Power and follow the onscreen steps.

For black screen issues click on the link below and refer the suggestions by Sharath Srinivasa.

Black screen after upgrading to Windows 10

Hope this helps.

Regards,

 

black screen

Hi Bart,

It is possible that you're experiencing black screen due to corrupted system files. To assist you better, we'd like to gather more information:

• Are you getting any error messages?
• What happen when you tried to login?
• What troubleshooting steps have you done so far?

In the meantime, we suggest that you follow the steps in this
article to troubleshoot black screen errors. You can choose which situation you're experiencing the error and perform the instructions.

Let us know if you need further assistance.