Cascading folder permissions royally f-ed up

[Alphathree33]

TL;DR:
- I have a folder (with a big tree of folders under it) with important stuff in it
- I was mucking around trying to share it to another PC
- At some point, I made an "Everyone" group and then clicked "Deny All" permissions
- This was a bad idea
- I've managed to remove the "Deny All", but I seem to only be able to reclaim the folders one at a time

QUESTION:
- How do I apply a cascading "Allow All" permission for "Everyone" in the same way that I did a cascading "Deny All" permission?

 

[HOSED]

Been there, I ended up reinstalling Win 7... I did find this, and tested it on a few files and sub folders and it works http://answers.microsoft.com/en-us/...missions/b09c0415-3607-4979-9ce7-c87be95229e6
See most helpful reply.

 

[Alphathree33]

OK I figured it out and I thought I would put the solution here in case anyone else needs it.

There is a command called "takeown" which you can use at the command line:

takeown /f C:\whatever /r

The /r is for recursive.

It didn't work at first. But then I started the command prompt window using "Run as administrator..." and then it worked.