I'm must be missing something here, but can't figure it out.

ZCM 11.4.1 fresh install
Windows 2012 R2
SQL 2014

I'm trying to apply the December 2015 Imaging Update, but keep getting "Backup files to current directory not supported". I've tried running from the desktop, separate folder inside of the TFTP folder and directly in the TFTP folder, but get this error every time. The command prompt shows running as Administrator.

What am I doing wrong?