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I realize that there have been similar questions posted around here and there, but none of the solutions seem to work for me.

What I did:

I have completely formatted my disk and divided it into three partitions using a third party partitioning software:

  • Windows 7 partition (NTFS)
  • Ubuntu partitions (NTFS, forgot to switch it to ext4)
  • Data partition (NTFS) Then I installed Windows on the first partition, then Ubuntu 13.10 on the second. The second partition was formatted to ext4 by the Ubuntu installation program.

What happened:

After installing Ubuntu, Windows 7 simply won't boot. To be exact, it displays the message about a failure and asks me to choose between trying to repair the system or normally booting - neither works, repair fills 2 progress bars then hangs and normal boot displays "Starting Windows" but the coloured orbs don't appear at all.

What I've tried so far:

  • boot repair Ubuntu application - didn't help at all
  • repairing Windows with the original disk - worked, Windows booted flawlessly once and then the situation repeated after the first restart. The same thing happens every time I try to repair it - works only for one boot. EDIT: I tried it now and it didn't work, so I guess it only worked twice.

What I am asking about:

Since the Windows disc's repair works, I hope that my Windows can still be saved (I've spent a couple hours setting everything up), although I have all my data backed up so it won't be a tragedy if I would have to reinstall it. But then I would like to know what can I do to prevent similar errors (in another question I learned that Windows replaces grub with its own bootloader). To sum up:

  • Can I fix my Windows installation and if so, how?
  • If not, what should I do when installing Windows alongside Ubuntu to make both systems boot correctly?
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