Hans, try these in the order listed:
1) Even though it's invisible, directly above, and slightly to the left, is the "Continue" button. If you move your mouse pointer into that region, does the pointer change to a hand? If it does then click there. The second screen that opens may be complete and allow you finish.
2) I've searched for what launches SCOOBE (second out-of-box experience) but couldn't find anything. I'm guessing that it's either a scheduled task or a RunOnce entry.
In Autoruns, I'd like you to post two screenshots - one for the "Logon" tab and the other for "Scheduled Tasks". Expand all the column widths as best you can to show as much detail as possible.