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I have an Ubuntu 10. 04 and Windows 7 installed on computer. Now I would like to try Windows 8 on virtual box OSE. I have a Windows 8 release preview ISO disk in a pendrive and added IDE primary slave as it

  IDE Primary Slave (CD/DVD):   
Windows8-ReleasePreview-32bit-English.iso (1.64 GB)

This is my Windows 8 virtual box settings.

And what I see when I start Windows 8 is

What is the problem? My system RAM is 2.00 GB where 1.85 is usable? How can I fix this problem?

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closed as off topic by jokerdino, Takkat, Uri Herrera, Tom Brossman, devav2 Oct 14 '12 at 13:52

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I gave you an answer below but generally we can not answer questions on non-Ubuntu guest operating systems here. It may be borderline case as settings in the host are involved but still I vote for closing as off topic. –  Takkat Oct 14 '12 at 6:56

1 Answer 1

up vote 1 down vote accepted

In order to install an operating system with a PAE kernel you need to enable this in the settings for your guest OS:

enter image description here

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