[Trisquel-users] Dual-boot

[buruneru]

I recently installed Trisquel alongside Windows 7.  Trisquel works fine, but  
I'm not getting a bootloader when I start the computer to choose Windows.   
Does anyone know what the bootloader with Trisquel is?  Is it GRUB?

I can't pull GRUB up with the command sudo grub from the terminal.
Any help getting me back to my Windows partition would be much appreciated.