First of all, I tried to download the .iso file and burnt it on a DVD, but the setup didn't show up. Then, I tried with the desktop one and when the setup was about to end, an error window popped up saying "Permission Denied". I searched through the internet, and tried open only wubi.exe with the .iso file in the same folder, I disabled the firewall, I clicked on the wubi.exe and the .iso file propieties and clicked "unlock block" but It was all the same. I tried like five times at least and it still doesn't do nothing. My current operating system is windows 7 ultimate service pack 1.

This is my log http://pastebin.com/NUtVQbi6

I really do need help :c