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I currently have a problem, I have the USB Version of Ubuntu..And if I try to install it, it says I have no OS installed! And I don't know how to install it without erasing Windows 8! Any help would be greatly appreciated.

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is there any something else option present,please select it. – Avinash Raj Nov 22 '13 at 0:54
No there isn't, There's a Erase Disk option and a Something Else option. – user218161 Nov 22 '13 at 0:55
i believe he means click "SOMETHING ELSE" option – Blaze Tama Nov 22 '13 at 5:37

select Something Else option,it will take you to select which partition you are going to install Ubuntu.Select that partition and format it to ext4 filesystem and install ubuntu on it.

Then don't forget to create swap partition and its size must be double the RAM size.

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