Windows 10: Windows boot missing or failed

I'm getting a 'Default Boot device missing or boot failed' error.I have watched and searched online solutions but all the things mentioned in those either isn't working or isn't available.When I enter bios to change boot option, I can't find the boot option itself.Secure boot is disabled and there is no CSM option as well. I tried restoring to default settings but it didn't make a difference.Not able to find any solution

:)

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx

 

Why did the startup window get cleared?

I didn't missed any step, the list was gone and gone , even after using lot of programs the programs were not listed in that list.

 

Boot Manager Is Missing

You need to use the Bootrec.exe tool in the Windows Recovery Environment. For that you need to boot into Recovery Environment and perform a "Startup Repair". If that fails then boot into WinRE again, and go to the "Command Prompt" and execute this command:

Bootrec.exe /RebuildBcd

Restore boot manager when it is missing or compressed
Use Bootrec.exe in the Windows RE to troubleshoot startup issues - Microsoft Support


You can look here too

http://www.howtogeek.com/howto/wind...ing-error-while-trying-to-boot-windows-vista/

(indeed you need a windows dvd)