Re: [Trisquel-users] Grub deleting windows xp and 7 boot files

[onpon4]

I've never had any problems. GRUB usually just auto-detects the Windows  
partition. But you clearly don't have a typical setup, so I think it's  
reasonable to assume that something about that setup is preventing the  
auto-detection. Perhaps you should configure GRUB manually to add the  
appropriate entries.