Windows 7 - Everyone Permission Changed to No Control

Question

I accidentally set the permission of Everyone of a folder to no control, now I cannot change to permission setting because I have no control, I cannot delete the folder.

Is this process reversible?

If you want further information on why I did this and how I cannot change back, read the following:

So I have this great software called Xunlei or Thunder for super fast downloading and torrenting, but it sometimes fires a ad popup on startup. So I want to change the permission of the popup .exe folder so it won't get opened. Being confused for a moment, I changed the "Everyone" permission (Saw this the first time) to Deny All Control, and you know being a Win 7 user, you OK wherever there's a User Control Alert. Then, I wanted to changed back because The software fires a alert constantly, saying "Cannot Access File"... That's the story.

Answer 1

Run cmd as Administrator, run command:

Reset NTFS permission disk C:

cd \
icacls * /T /Q /C /RESET

Reset NTFS permission and registry permission to default Windows 7:

secedit /configure /cfg %windir%\inf\defltbase.inf /db defltbase.sdb /verbose

Reset NTFS permission at folder to default:

ICACLS "C:\Folfer Name" /RESET /T /C