The method you used is broken and flawed. NEVER use the Driver Update button in Windows. Here's a note on Windows 7 Driver Rollback.
So, i just got windows 7 premium, and i had to get new drivers for my AMD graphics card.
I went to: Control panel/System/Device manager and did an automatic update from there.
I restarted my computer normally.
The problem is, that there is no toolbar, no icons, nothing but my wallpaper, which is almost a square.
i pressed Ctrl+alt+del, nothing but a black screen.
Right-click still works, but i can't go to the Amd control center.
Please help me with this problem, i really need this computer..