can't share with write permission

I've done this file sharing many times and have always gotten it to work one way or another ... that is until today. Here is my situation:

- Windows 7 home, 64 bit with network discovery and file sharing turned on and the 40/56 bit encryption selected (since one of my networked computers has winXP).

- I'm trying to share my whole F drive on the network. The owner of this drive in the advanced security settings is listed as "Paul" (my account - which is an administrator).

- I go to F: properties and select the sharing tab. It says "F:\ Shared". Clicking on advanced, I see that the "Share this folder" box is checked and if I click on the "Permissions" button I see that is has just one Group called "Everyone" and it has all three "allow" checkmarks (Full Control, Change, Read).

- I go to the "Security" tab and it shows "Everyone" with Full control. To make sure I click on "Advanced", "Permissions tab", "Change Permissions", highlight "Everyone", check the box that says "Replace all child object permissions ..." then click on "Edit". Then I make sure every checkmark is on "Allow" and click "OK".

But then when I go to another computer on the network, I find that I can read all the folders of the F drive, but I can't write to any of them. I guess I must have missed at least one small detail, but I can't think of what.

One last hail mary try, I changed the "LimitBlankPasswordUse" registry key to zero, something I used to have to do, but I don't think is required any more. In any case, that didn't help.

Any ideas?
~Paul

Under the ownership tab, what accounts show up with permission to take ownership?

Just two accounts. One called "Paul" (also an administrator) and another called "Administrators".

You can try changing that to Administrators