Other causes can be a broken or unplugged hard drive, the wrong boot order, or issues between UEFI and Legacy boot modes. In this article, we will discuss different ways to solve this error
1. Fix BIOS Settings
The most straightforward way to fix this error is to reset your BIOS settings to their default state. Another possible fix is to set your hard disk as the primary boot device: You may also need to adjust your system’s boot mode to match the partition style (MBR or GPT) of your hard disk:
2. Fix the Boot Loader
For this solution, you’ll need a USB drive prepared as a bootable device with Ubuntu. You can follow this guide to make one. Once you’ve created a bootable Ubuntu USB, do the following:
3. Install Windows 10 alongside the existing Ubuntu
If the computer can’t find the Ubuntu boot loader or if that partition is corrupt, installing Windows 10 can help. This will set your computer to use the Windows 10 boot loader by default.
4. Replace the Hard Disk
This should be your last resort, as it’s the most expensive and could result in data loss. Before buying a new hard disk, try connecting your disk as an external drive to another computer to see if you can still access your files. If you can access your data this way, you might not need to replace the hard drive.
