I just installed Win7 and everything seems fine so far. The issue came when I reboot the machine where it stopped with the error "NTLDR is missing". Strange is it can boot up just fine if I put the Win7 installation DVD in the optical drive, even if the boot up was set to HDD as first in BIOS. Without the dvd in the drive, the boot up will stop again with "NTLDR is missing". Tried the Startup Repair and some others but to no avail. I don't mind doing a reformat, but not really sure if a reformat will fix the problem. Any idea guys?