It means you likely installed Windows in legacy mode. As per guide, you should h ave installed in UEFI (and it brings more evidence to suggest you likely corrupted your OS X partition by partitioning the HDD in the wrong way).
No "Problem Reporting" files attached.
Read FAQ, "Problem Reporting" again. Carefully. Attach all requested files/output.
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/
Did you boot the installer so you could run Disk Utility and check/repair your system partition? (if it is even possible)
You should already have a USB with the installer on it... because how else could you have installed in the beginning?