How to fix No bootable device — Please restart system?

If you are seeing the error message “No bootable device — Please restart system” on your Windows computer, it means that your system is unable to find a bootable device to start up the operating system. This can happen due to a number of reasons, such as a corrupted boot sector, a faulty hard drive, or incorrect boot order settings in the BIOS.

Here are some steps you can take to fix the issue:

1. Check the boot order settings in the BIOS: Make sure that the boot order is set correctly in the BIOS. The first boot device should be the hard drive where the operating system is installed. If the boot order is incorrect, your system may try to boot from a non-bootable device, resulting in the error message.

2. Check the hard drive connections: If the hard drive is not properly connected to the motherboard, your system may not be able to detect it. Make sure that the hard drive cables are securely connected to the motherboard and the hard drive.

3. Run a diagnostic test on the hard drive: Use a diagnostic tool to check the health of your hard drive. If the hard drive is faulty, you may need to replace it.

4. Repair the boot sector: If the boot sector is corrupted, you can try repairing it using the Windows installation media. Boot from the installation media and select the “Repair your computer” option. Then, select “Troubleshoot” > “Advanced options” > “Command Prompt”. Type the command “bootrec /fixboot” and press Enter. This should repair the boot sector and allow your system to boot up.

5. Reinstall the operating system: If none of the above steps work, you may need to reinstall the operating system. This will erase all data on your hard drive, so make sure to back up your important files before proceeding.

In conclusion, the “No bootable device — Please restart system” error can be caused by a variety of issues, but the steps outlined above should help you fix the problem and get your system up and running again.


In conclusion, I hope that the steps provided were helpful in resolving the “No bootable device — Please restart system” error on your Windows computer. Remember to always check the boot order settings, hard drive connections, and run diagnostic tests to ensure the health of your system. If all else fails, reinstalling the operating system may be necessary. If you have any further questions or concerns, don’t hesitate to seek additional assistance.

Athena Estudy

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