Hi,

Currently, the setup script for Windows does not support installation in a
directory whose path contains spaces. Please change line 41 of
first-setup.bat from

mtxrun --script ./bin/mtx-update.lua --update --force --make --engine=all
--context=beta --texroot=%OWNPATH%tex %*

to

mtxrun --script ./bin/mtx-update.lua --update --force --make --engine=all
--context=beta --texroot="%OWNPATH%tex" %*

Then everything should be fine.

Thanks,
Christoph