If you are creating USB media in the Media Wizard and get the error "Sequence contains no elements" you'll need to try a diskpart clean and format of the USB drive.
From an elevated command prompt, run the following:
diskpart
list disk [determine which disk is your external USB stick, probably disk 1]
select disk 1 [use the correct disk number here]
detail disk [read the disk info; make sure you have your USB stick selected]
clean [this destroys all data and partition/volume info on the selected disk]
create partition primary
active
format quick fs=ntfs [Media Wizard will convert this to FAT32 later]
assign
exit
Then run the Media Wizard again.
