Boot Error

So i was attempting to partition my USB with Kali Linux for Kali Linux Persistance. While creating the partitions I lost power and when I finally got the system up again i let it automatically boot to Windows as my system does unless i get into the boot options on the start up. However it would not boot at all! It came up with a blank black screen with a blinking cursor in the top left corner.

When i attempt to boot from the usb for kali i then get another error:

When i attempt to boot where i once had windows boot i no longer have this so I am not sure whats happening. From what Ive read on the above picture it is apparently attempting to boot from the network drive and that its easily fixed but I am not sure at all.

ANYONE THAT CAN HELP WOULD BE VERY MUCH APPRECIATED.