Windows Boot Manager doesn't appear on the UEFI Boot options

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Good evening, sorry about the poor knowledge of english.

I have a Inspiron 15R 5537 with windows 7 ultimate, and i've installed windows 8.1 pro over it.

After that, i trying to change the boot mode, choosing UEFI instead Legacy, but when i change the boot option to UEFI, the system does not starts, and shows the message "Checking media... fail", two times, and shows the message: "No media detected. Restart the computer and selects another boot option".

When i get on the setup menu, and i see the UEFI boot options, the option "Windows Boot Manager" does not appears, only shows Lan IPv4 and Lan IPv6.

I hope someone helps me, or i'll have to erase the computer and install everything again, from the begining.

Thanks for the support.

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RE: Windows Boot Manager doesn't appear on the UEFI Boot options

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In order to use UEFI boot, you must have a GPT-partitioned disc -- which you do not, if you upgraded from Windows 7.

You must install Windows 8 clean and in GPT mode in order to make this work - meaning, backup your data and start over.

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8 Krypton

RE: Windows Boot Manager doesn't appear on the UEFI Boot options

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In order to use UEFI boot, you must have a GPT-partitioned disc -- which you do not, if you upgraded from Windows 7.

You must install Windows 8 clean and in GPT mode in order to make this work - meaning, backup your data and start over.

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RE: Windows Boot Manager doesn't appear on the UEFI Boot options

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Thanks for the answer ejn63. I don't want this at this time, so i came to the blog in search for a different answer, i think than i do not want to believe that i have to erase my notebook.

Thanks again.

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8 Krypton

RE: Windows Boot Manager doesn't appear on the UEFI Boot options

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The only way to change from MBR to GPT is indeed to start over.

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