What to do if you get the "No bootable device" error?

Question

What to do if you get the "No bootable device" error?

Anonymous

Hello! I need your help — maybe you have a solution.

I have an Acer Aspire A315-59 laptop. On April 29th, it was working perfectly fine, but when I turned it on on April 30th, I received the message: "No bootable device."

All attempts to fix the issue have been unsuccessful. I’ve tried everything I could find online, including attempts to unlock advanced BIOS settings — spoiler: that didn’t work. The only thing I haven’t tried is switching the boot mode from UEFI to Legacy, and there’s a reason for that: the BIOS doesn’t allow me to do it.

In the Boot tab, the only thing I can change is Secure Boot. The boot priority order is not displayed at all. However, in the Main tab, the storage device is visible.

I would greatly appreciate any help you can offer.

Thank you in advance!

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5 answers

Answer 1

Hello,

Thank you for clarifying the concern,

I would like to inform you that you can reach out to us anytime. You can reach out to Microsoft live support team on - Contact Us - Microsoft Support. Our team will also help you. Additionally, I would like to suggest you to please reach out to the manufacture as the USB is not getting detected. They will check if there is any physical damage or any kind of issue with the hardware components and fix the issue on real time. Otherwise please reply back and let us know if it worked for you.

Have a good day,

Kind regards

Zack | Microsoft Community Moderator

Answer 2

I'm back!

I’ve already tried doing this. I have a bootable USB drive that I previously used to install Windows on my desktop PC (which, unfortunately, is currently far from me). I plugged it in and entered the BIOS — followed all the steps as described in guides and on platforms like YouTube — but the USB drive still didn’t appear in the boot priority list.

I thought maybe BIOS simply doesn’t show it there, so I tried pressing F12 to check if it would show up in the boot menu — but unfortunately, it wasn't visible there either. Most likely, the issue is related to the BIOS itself.

I’m considering removing the BIOS battery to fully reset the settings and see what happens.

If that doesn’t help, I’ll get back to you again.

Sorry for being persistent.

Wishing you a

good day!

Answer 3

Hello,

Thank you for reverting back,

As I can check in the pictures that the Secure boot is not enabled. I would suggest you to please enable the secure boot and create the installation media and then try to install the windows. As to make the device accessible you will need an OS. You may adhere to the steps in the above article and check how to install to windows by creating an installation media.

Have a good day,

Warm regards

Zack | Microsoft Community Moderator

Answer 4

Thank you for your response!

Unfortunately, my issue is not related to Windows, as the laptop — specifically the boot menu — does not detect the storage drive. In my case, it's an M.2 SSD installed in the GEN4 slot. I’ll try to attach a photo of the boot menu and the information tab.

Answer 5

Hello,

Thank you for sharing your concern on community forum.

As per the description, you are facing issue regarding the booting of your windows. Wherein you are not able to boot your windows. However, I would like to suggest you to please perform a custom installation, and you can also check - Ways to install Windows 11 - Microsoft Support. It will get your windows from fresh and troubleshoot all the issues with your windows.

I appreciate your understanding and patience.

Thanks, and regards

Zack | Microsoft Community Moderator

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What to do if you get the "No bootable device" error?

5 answers