Problems booting/installing Win 10 from 2016 WDS using iPXE

[NiKiZe]

You seem to have posted to the mailing list as well with a solution:
http://lists.ipxe.org/pipermail/ipxe-dev...06388.html

And yes having "C:\" in the filename of the TFTP path is not a supported configuration.
It might work in "stupid" PXE implementations, but it is not possible to support in iPXE since it needs to support multiple protocols.
And I would in any way say that it is bug (read security issue) in the TFTP server implementation to accept that kind of path.

Who did the c:\ configuration in the first place?