BOOT DEVICE NOT FOUND

Shulman 20 Reputation points
2026-01-05T13:13:46.8433333+00:00

Microsoft automatically renewed my subscription to Microsoft 365 Family - now I can't turn on my laptop, all I get is a message: BOOT DEVICE NOT FOUND. And I can't believe it's not possible to speak to someone at Microsoft?? Seriously? Thank you.


Moved from: Microsoft 365 and Office | Access | For home | Other

Windows for home | Other | Performance and system failures
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Answer accepted by question author
Ian-Ng 14,150 Reputation points Microsoft External Staff Moderator
2026-01-05T17:43:11.07+00:00

Hi @Shulman

Welcome to Microsoft Q&A forum. 

Thank you for reaching out. I understand that you encountered a "BOOT DEVICE NOT FOUND" error after your Microsoft 365 Family subscription was renewed.

To clarify the situation, the Microsoft 365 renewal and this boot error are almost certainly a coincidence. A subscription renewal is a billing event handled on Microsoft’s cloud servers and doesn't have the technical capability to alter your computer’s hardware settings or delete your operating system. This error typically points to a hardware communication issue, a BIOS setting change, or a failed Windows update that may have occurred during a background restart. 

To help get your laptop back up and running, kindly follow the troubleshooting steps below: 

  • Perform a hard reset by unplug your charger and any USB devices. Press and hold the Power Button for 15–30 seconds. This drains residual power from the motherboard and can often resolve minor hardware hangs. 
  • Restore BIOS defaults:
    • Turn the laptop on and immediately tap the BIOS key (usually F10, F2, or ESC, depending on your brand) until the settings menu appears.
    • Look for an option to "Load Setup Defaults" (often the F9 key).
    • Select "Save and Exit" (F10).
  • Check drive detection: while in the BIOS, look under "System Information" or "Storage." If the Hard Drive or SSD is listed as "None" or "Not Detected" there may be a physical connection issue, or the drive may have failed.

If the problem persists after trying these troubleshooting steps, you also can contact Microsoft directly for assistance with your subscription or Windows installation. As a Microsoft 365 Personal/Family user, you have access to official support via the Microsoft Support Portal. To speak with a live person, type "Talk to an agent" in the search box, then click the "Contact Support" button at the bottom of the page to see chat or callback options.

I hope this helps clarify the situation and assists you in getting your device restored.

Please let me know if there is anything else I can do for you.

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  1. Shulman 20 Reputation points
    2026-01-07T01:56:28.39+00:00

    No, it doesn't work. There's no option for "Load Setup Defaults"... The other test result shows "No hard drive installed". This is horrible

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  2. AI answer

    2026-01-05T13:14:04.6066667+00:00

    The "BOOT DEVICE NOT FOUND" message typically indicates that your laptop is unable to find the operating system on the hard drive. This issue is not directly related to your Microsoft 365 subscription, but rather to the hardware or software configuration of your laptop. Here are some steps you can try to troubleshoot this issue:

    1. Check BIOS/UEFI Settings: Restart your laptop and enter the BIOS/UEFI settings (usually by pressing a key like F2, F10, or Delete during startup). Ensure that the hard drive is recognized and that the boot order is set correctly.
    2. Reconnect Hard Drive: If you're comfortable doing so, you can open your laptop and check if the hard drive is properly connected. Sometimes, a loose connection can cause this error.
    3. Run Startup Repair: If you have a recovery drive or installation media, you can boot from it and select the option to repair your computer. This may help fix issues with the boot configuration.
    4. Check for Hardware Issues: If the above steps do not resolve the issue, it may indicate a hardware failure. In this case, contacting a technician or the manufacturer's support may be necessary.

    If you continue to have issues, you can reach out to Microsoft support for assistance with your Microsoft 365 subscription and any related concerns.


    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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