wimboot compatibility with Windows 8.1

[robinsmidsrod]

You'll need to use the real bootmgr.exe instead of the one wrapped inside bootmgr, as the windows 8.1 compression is not (yet) supported. Try to unpack the generated files and look for a PXE directory. It should contain a file called bootmgr.exe. You can just use that one instead of bootmgr (without extension).

I've got no information on when the Windows 8.1 version of bootmgr might be supported in wimboot. I would suggest you ask on the mailing-list if/when it's going to be supported.