I've just installed Windows 7 x64 Home Premium and it's a nightmare thanks to UAC. Things have finally come to a head now I've tried to delete a folder in Windows.Old only to be told I require permission from administrators. Things is, I'm the only user of this machine. I AM the administrator, or so I thought. Anyway, to cut a long story short I finally managed to bring up the actual Administrator account but find I can't log in to it because it requires a password. As I never supplied a password when I installed Win 7 I'm completely confounded by this. How on earth do I fix this problem ?