Dual Booting Problem

[worlddlck]

Hello, i've just trying to install ubuntu

I am using windows 7 , and i am trying to dual boot windows 7 and ubuntu

After the installation done in windows 7 , i followed the instructions that restart my computer, but still after restart , there is only JoliOS and Windows 7 but Ubuntu...

What can i do?

*i cant uninstall ubuntu on my windows 7
Here is the error message:
Error executing command
>>command=C:\windows\system32\bcedit.exe /delete
{54af256d-1855-11e0-bcb8-c4669a0cdfea} /f
>>retval=1
>>stderr=An error occured while attempting to delete the specified entry.
The system cannot find the file specified

>stdout=

For More information, please see the log file:
C>\users\dickso~1\appdata\local\temp\wubi-11.04-rev211.log

Please help me =(
Thanks~

[yancek]

I am using windows 7 , and i am trying to dual boot windows 7 and ubuntu

Reading your post indicates that you tried to do a wubi install of Ubuntu, installing Ubuntu as a program inside windows. Is that correct. Where does JoiOS fit in? Where is it? Separate paratition, another wubi install? What does the log file referred to say?