Error 39 on dual boot with Windows 7 and Ubuntu

pinco

New Member
#1
I have a dual boot with Windows 7 and Ubuntu on the same disk
Windows 7 boots fine, but hen I try to book Ubunto, I get a grub prompt, and when I quit, I get the following error:
"Error 39: grub was not booted from DOS, or the backup copy of DOS at address... is corrupt".
Below is mz configuration.
Thanks for nay help

here are a total of 2 entries listed in the bootloader.
Default: Windows 7
Timeout: 30 seconds
EasyBCD Boot Device: C:\
Entry #1
Name: Windows 7
BCD ID: {current}
Drive: C:\
Bootloader Path: \Windows\system32\winload.exe
Entry #2
Name: NeoSmart Linux
BCD ID: {d4e881f0-6c71-11e1-ba59-fe57fbc05807}
Drive: C:\
Bootloader Path: \NST\AutoNeoGrub0.mbr