Can't select destination partition

[mbernhardt]

Thank you for reporting this problem.
Which version of WinToUSB you are using? Can WinToUSB recognize the file system of these two partitions correctly?
Please send the "user.log" to me, it is located in the bin folder under the installation directory.

I'm out of town so I'll have to deal with it when I return. But in regard to partitions, should I provide an unformatted disk or partitioned? If partitioned, what type of partition and disk formatting do you recommend?