"No bootable device – insert boot disk and press any key", "Boot Device Not Found. Please install an operating system on your hard disk…", "No Boot Device Found. Press any key to reboot the machine" or "no boot device is available".
Have you ever encountered these errors?
Why Boot Device Not Found?
1.Boot PC from an unbootable disk or device
2.The bootable disk is corrupted or died somehow
3.MBR or boot sector is damaged on the bootable hard drive
4.Viruses attack the PC
How to Fix Boot Device Not Found Issue?
Solution 1: Check and Modify Your PC Boot Order
Solution 2: Repair MBR or Boot Sector
Please boot PC from the bootable disc you have built. Then in the main interface of MiniTool Partition Wizard, select the target hard disk to click "Rebuild MBR" from "Check Disk" menu. At last, click "Apply" button to finish fixing boot sector and MBR.
Solution 3: Test And Fix Hard Disk
Solution 4: Fix Operating System
In Windows 10, click "Repair your computer", then select Troubleshoot, Advanced options, Startup Repair
