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I just installed ubuntu 11.10 alongside with Windows 7. Ubuntu starts and work fine. Instead, when i click on the last option:

windows 7 (loader) (on /dev/sda1)

the bootloader reload itself and doesn't start windows 7! So now i can only use ubuntu! For me ubuntu is good etc, but i like also to use windows if possible... can you help me?

Here's my Boot Info Script: http://paste.ubuntu.com/5655022/

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i just follow the second point of this procedure: askubuntu.com/questions/194071/… it told me to repair the boot sector sda1 using instrument like testdisk, it give me also this beautifull document: paste.ubuntu.com/5655022 –  pietrod21 Mar 28 '13 at 12:27
    
Hmm looks like you have Wubi installed. Windows might cause problems if you have Wubi and a full Ubuntu installation on the same computer. –  Emerson Hsieh Mar 28 '13 at 12:37
    
Also, try running Boot Repair from a Live Ubuntu CD or USB. It might fix your problems :) help.ubuntu.com/community/Boot-Repair –  Emerson Hsieh Mar 28 '13 at 12:38
    
is the same, doesn't work, it's wise for you try to destroy wubi folder? this is the output: paste.ubuntu.com/5659502 –  pietrod21 Mar 29 '13 at 21:44
    
this is my pastebin.com/HgNFhN3Y grub.cfg –  pietrod21 Apr 2 '13 at 13:56
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1 Answer

In ubuntu open a terminal and run

sudo update-grub

The system should regenerate all bootable kernels and chain loading boot partitions

A word of note, it is very possible that grub is fine but the Wondow boot sector is broken. Grub chainloads the Wondow bootstrapper.

you may need to run a repair from Wondow disc/media so its the only bootable system then use the ubuntu livecd/disc to re-install grub

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Done some further research. You csn also try a utility called boot-repair.help.ubuntu.com/community/Boot-Repair –  rupert Mar 31 '13 at 22:45
    
thanks, Emerson just suggested me to do so...i will tray to adjust the win boot loader by win 7 cd..... –  pietrod21 Apr 2 '13 at 13:54
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