New install. Can't access partitioned files.

I had Windows XP operating system with users and saved my files on a partition. Just installed Windows 7 and now I can't access the partitioned files due to permissions. If I try to open a file, I get the message "You Don't Currently Have Permission To Access This Folder: Click continue to permanently get access to this folder". If I click continue, it tells me to go to the security tab. Once there, it tells me it's unable to display the current owner. I can still gain access to the specific folder (as an administrator) but not the sub-folders. There are thousands of folders and I would have to do them individually. Is there a way to blanket share all the files on my partitioned drive?

This should sort you out.

Take Ownership Shortcut

Hipster Doofus,
Thanks a million for the help. It worked like a charm. Thanks for the quick response. It would have taken me a year to do all of that manually.
DanTheMan

Good stuff Dan. :)