Lenovo thinkbook default boot device missing

Question

So i woke up today to my laptop having this message and bot wanting to open i guessed that the windows fail but after some research it happened to alot of people does anyone know how to fix it instead of me having to install a new windows and thx for anyone who tries to help

Answer 1

Enter the BIOS and check if your boot hard drive is showing up under Main menu.

If the boot disk is detected, check whether it is set as the first option for booting under Boot menu. If not, you can set it as the first boot device through arrow keys.

If BIOS detects the boot hard drive normally, boot order and boot mode is correct, you can run Startup Repair to fix “Default Boot Device is Missing or Boot Failed” error. Have a look at how to fix the error using Startup Repair.

Step 1. Insert Windows installation CD/DVD and boot your PC from the device.

Step 2. When the first screen appears, choose “Language to install, Time and currency format and Keyboard or input method. Then, click “Next”.

Step 3. On this screen, click “Repair your computer” and then choose “Troubleshoot”.

Step 4. In the Advanced options window, choose Startup Repair to fix boot failure.

Rebuild MBR:

1. Boot your computer using a Windows installation media (USB or DVD).
2. Choose the language and region settings, then click "Next."
3. Click "Repair your computer" at the bottom left corner.
4. Select "Troubleshoot" > "Advanced options" > "Command Prompt."

In the Command Prompt:

1. Type the following commands one by one, pressing Enter after each:

bootrec /fixmbr

bootrec /fixboot

bootrec /scanos

bootrec /rebuildbcd

Reboot.