I installed Windows 7 four days ago in addition to an already existing Windows XP installation.
After trying hibernation on my windows 7 system, I could not reboot any longer for 'ntldr is missing'. Recovery within Windows 7 repair options failed, so I used EasyBCD in order to be able to boot...
admin rights
boot options
boot.ini
bootloader
dual boot
easybcd
file modification
hard drive
hibernation
legacy support
ntldr error
operating system
partition
permissions
recovery options
system files
system repair
troubleshooting
windows 7
windows xp