Hello to everyone! I'm desperate...

I was following step by step the wonderful guide made by Steff on how to start to install everything of necessary for Modcraft but when I should start Noggit  for the first time, I got the problem described in the guide:

"If the applications just close again after start, you perhaps have the "read only" option set on folders or the folder rights are set wrong.
This often happens if you copy a wow over from another harddrive or downloaded it from the internet."

When I tried to start Noggit indeed, it closed suddenly without show any words or image, just a fast white window that appear and disappear.
Then I tried the solution proposed in the guide:

"
- Rightclick on the Client335aNoggit folder
- Deselect the read only checkbox and hit ok
"

Sadly the option that i deselect of "read only" of the folder, after that I press ok,it seemed to be selected again when I check if the deselection it worked .... and nothing that I tried can deselect this option!
I tried to google it and I've found out it's not only my problem, but seems to be quite common. I found out that every folder in my computer has the same problem that i couldn't remove neither from the command prompt.

Other solutions that i tried are to stop temporarily my Antivirus (AVG) and check if i got every rights as administrator, but nothing of it worked.
For me is really frustrating and demoralizing because I've already spent a hour and a half but i could fix nothing

If is usefull to know, I have Windows 8.1 on my PC.

Can anyone help me?  :cry: