How to boot a win 7 hard drive that was in Ubuntu system?

[Ralf Mardorf]

Now that it's solved, the Microsoft support hopefully is finished.
Please, don't add more comments.

This is one of the three longest threads this month, see
https://lists.ubuntu.com/archives/ubuntu-users/2017-April/date.html .

The other two threads are related to Ubuntu and Linux and about far
more complicated topics, not something that trivial as the Microsoft
issue.

Regards,
Ralf