Acer Aspire A15-51 laptop shows 'Default boot device missing or Boot failed' error on startup

Priyanshu_1200
Priyanshu_1200 Member Posts: 1 New User
edited 12:08PM in Aspire Laptops
20250817_165217.jpg

Any solution anyone

Answers

  • Puraw
    Puraw ACE, Member Posts: 18,663 Trailblazer

    Hi @Priyanshu _1200The “Default Boot Device Missing or Boot Failed” message means the firmware can’t find a system drive to boot from, regardless of whether it’s Windows or Linux. Please check and share:

    1. If the SSD/HDD is detected in BIOS (press F2 at startup → Information tab).
    2. Your OS type/version and current BIOS + EC firmware versions.
    3. Any recent hardware, firmware, or partition changes.
    4. Whether you have recovery media or another bootable USB available.

    Once we know if the drive is visible in BIOS, we can guide you on bootloader repair or full OS reinstall.