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I just installed my new computer (Gainward Z87X-UD4H, i7-4770, no video card). Due to some gaming, I installed Windows 7 first. Afterwards I installed Ubuntu 12.04 LTS. Now, my Ubuntu starts without any problems. Choosing Windows in grub, it hangs on grub's purple screen.

Again, this is not about a purple screen for Linux (for example, My computer boots to a black screen, what options do I have to fix it?), it's more related to this, this or this. How I can debug/fix that?

For the protocol, I tried:

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Dennis
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1 Answers1

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You can try booting the windows install image/recovery disk and manually recovering the boot EFIs (with the bootrec and bcdboot commands).

Here is a complete guide: https://superuser.com/a/504360/275127 Helped me a lot when this happened to me.

When doing the above mentioned procedure, you should find a folder, on your EFI partition, with an "ubuntu" folder that hosts the ubuntu boot files. Create by following that post's guidelines the windows EFI files in a separate "microsoft" folder next to the "ubuntu" one.

Reboot, boot ubuntu normally, fire up boot-repair. Boot-repair will detect your new windows EFI files and proceed to add them to GRUB (the recommended settings option should suffice). If Boot-Repair asks if you want to back-up the windows EFI files, say yes.

I hope this helps.

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Anglepoise
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