I don't know if you can help but, I have been fighting to install Adobe 6.0. When trying to install I get "Error 1317. “An error occurred while attempting to create the directory C:\Documents and Settings\All Users\Documents\Adobe PDF 6.0.” Now I have followed all the recommended tasks including booting to Safe Mode and getting the permissions required etc. etc. At this point eliminating the users logon, permissions, etc. etc. entirely would be better I think. Of course I don't have a clue where to start with that. I have great security software "Bit Defender" with firewall So, I really don't see the reason for this windows security function.