Install Ubuntu 10.10 using wubi on Windows 7 (Avoid Permission Denied Error)

Problem:

Wubi provides a fast and convinient way for us to install Ubuntu on an existing Windows OS. However, when I was installing Ubuntu 10.10 by wubi on Windows 7, I got an error message "An error occured: Permission Denied".

Solution:

To solve this problem, you can do the following:

1. Download the CD image xxx.iso (e.g. Intel x86 Desktop: ubuntu-10.10-desktop-i386.iso) and save to under your partition (e.g. D:/).
2. Unmount the image file with either DAEMON tool, WinRAR or 7zip, extract the wubi.exe file to the folder containing the image file.
3. Run the wubi.exe (and no "permission denied" error will occur!)
4. You can choose to delete the image file after reboot.

Done and enjoy!