It's a clean install, just do it again.I read this method on a web
I can open that cmd in advanced options, should I try this?
- Boot from your Windows 8 install DVD.
- At the initial screen, pick Repair your computer.
- Then Troubleshoot -> Advanced Options and finally Command Prompt.
- At this command prompt, enter: bootrec /RebuildBCD (to rebuild boot configuration)
- and then bootrec /FixBoot (to write a new boot sector) "