On the Administrator/Permissions lost issue, is it possible to do this, or do you get a 'no go'...
Start > All > Programs > Accessories > Command Prompt
Right-click the Command Prompt and select: Run as Administrator
Copy/paste the entire text in the code box, and paste it at the blinking cursor of the Command Prompt:
reg query "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\system" /s >look.txt
start notepad look.txt
Do you get any results titled look.txt?