What to look at:
- SATA/NVMe drive failing or cable loose.
- Boot mode mismatch (UEFI vs Legacy) after a reset.
- Boot order changed; the OS drive fell behind USB/DVD.
- Damaged bootloader; needs repair via recovery media.
- Recent clone to SSD missing EFI partition.
Need help? Check here: /services/repairs/
What it might be (likely causes)
Storage not detected or failing
A loose SATA cable, unseated NVMe, or a dying drive can disappear from firmware. If the drive isn’t listed in BIOS/UEFI, the OS can’t boot. If it is listed but throws the error, suspect the bootloader/partitioning.
