Looks like you have Diagnostic Tools set as the default option in your BCDEDIT
I would boot into recovery mode like you always do, then start a command prompt and type "BCDEDIT"
find your windows partition and note the identifier (the top header in the mess)
type bcdedit /default [identifier goes here without the brackets obviously]\
then type bcdedit again to check to see if it is default, and reboot
should work, if not maybe boot into Knoppix or some other linux livecd and set the system boot partition from there