Remove and connect back all hardware components Now, you can try the below-listed methods to check if the 'no bootable device found' problem can be fixed. How to fix no bootable device on Windows 11/10/8/7? ▶Computer's boot hard disk MBR sector is damaged. ▶ Internal hard disk is corrupted due to disk errors/bad sectors. Here are some major reasons you can take a look at. How to fix no bootable device issue properly on Windows computer? First, let's find out the possible causes of this problem. It means BIOS cannot find or locate the boot device or the boot files on the boot device are incorrect. The “no bootable device found” error is actually reported by BIOS. BIOS is a program in computers used to load the operating system and execute the boot operation.

What does it mean by 'no bootable device'?Ī bootable device is a kind of storage hardware, such as hard drive, USB flash drive floppy disk drive, DVD, CD-ROM drive, which contains necessary boot files and drivers for loading the operating system.

Windows boot manager not working