Question about installing windows w/o opti drive

[tegedrex]

I recently purchased a late 2013 15" rMBP, I want to install Windows 8.1 but do not own a external disk drive for the windows disk. Am I able to use my old 15" MBP late 2010 to build the flash drive since it has a optical drive if I plan on using bootcamp? Thanks for the help.

 

[saturnotaku]

You can use your 2010 MBP to create an .iso image of the Windows install DVD, then copy that file to your rMBP and point Boot Camp Assist to that.