I have Win 7 laptop and mbp. I removed disk from Win laptop and plugged on mbp as external disk. Windows 7 is on NTFS partition. Since I have NTFS for Mac by Paragon I can read/write to that partition.
On Parallels I choose
Use Windows from Boot Camp, hit
Continue and reached what is shown by the screenshots:
What else may I try in order to boot that Win 7 on mbp?