Install Windows 8 64-bit over the top of Windows 8 32-bit

Posted by Andrew Gee on Super User See other posts from Super User or by Andrew Gee
Published on 2012-09-24T09:29:19Z Indexed on 2012/09/24 9:40 UTC
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64-bit

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iso-image

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32-bit

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windows-8

I currently have Windows 8 32-bit installed from MSDN (I didn't realise at the time that my processor supports 64-bit).

I understand that you can't upgrade within Windows 32-bit to 64-bit directly from the ISO.

I have burned the ISO to a DVD, and have attempted booting from this drive.

The problem I am encountering:

The operating system couldn't be loaded because a required file is missing or contains errors.

File: CI.dll

Error code: 0xc0000221

You'll need to use the recovery tools on your installation media. If you don't have any installation media (like a disc or USB device), contact your system administrator or PC manufacturer.

Additional info:

Computer: HP Pavillion m9280.uk-a
Processor: AMD Phenom 9600 Quad-Core
RAM: 3 1GB sticks

Thanks in advance!

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