Wild guess: try to convert excluding first (unknown) partition...
You can verify your BCD configuration with bcdedit.exe and recover it with 'bootrec.exe /rebuildbcd' in recovery console... but be careful.
HTH
Wild guess: try to convert excluding first (unknown) partition...
You can verify your BCD configuration with bcdedit.exe and recover it with 'bootrec.exe /rebuildbcd' in recovery console... but be careful.
HTH