I tried installing the upgrade build 7057 over 7000 (x86) and it seemed to work fine. But then Windows 7 boots into the message "preparing your desktop for first use". It follows the message "Setup will continue after restarting your computer" and after ca. 1 Minute it restarts and does exactly the same. I tried that for about 5 times and it keeps doing that. No error messages.
Did anybody have this problem as well? Any ideas for troubleshooting?
Thank you guys!
Addition: I have just seen that people have problems with Norton 360, which I have installed, too. Maybe I can boot into safemode and remove Norton - I will try this tonight and report.