Str det inget mer?
Googlar man p det s verkar det vara ngot med usb.
http://bit.ly/11lPZz0
Insert your Windows 7 DVD into your optical drive(DVD drive) and restart the system.
Boot using this DVD by pressing any key when windows asks "Press any key to continue..".
Select your language in the first screen and click "Next".
In this Window, select the option named "Repair your computer".
This tool will search for the installation directory for a minute.Once it finished, click "Next" once again.
Under Recovery Tool, choose the option named "Startup repair". Now,Windows will try to repair your startup problem and gives a message to restart your system.