Installing Problem

When i go to instal windows 8.1 a thing pops up saying "No device drivers were found. Make sure that the installation media contains the correct drivers, and then click OK." i have made sure my all the stuff is plugged in correctly I am installing it using a flash drive i downloaded it from a windows 64 disc i just bought my only other computer is a Macbook pro

You might need to format the hard drive, but I'm not sure how you can do that without another Windows PC.