Trying to re-install Windows 8.1

ImPrettyIrish

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Oct 17, 2013
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I can't re-install Windows 8.1 because some files are missing, I guess. It says to put in the media disk but I don't have one for 8.1, I have one for Windows 8. So, what should I do? I really like 8.1 and really don't want to revert back to 8. Thanks for any help. It is much appreciated.